{| |} in flight.]]

Aircraft are vehicles which are able to fly by being supported by the air, or in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.

Although rockets and missiles also travel through the atmosphere, most are not considered aircraft because they use rocket thrust instead of aerodynamics as the primary means of lift. However, rocket planes and cruise missiles are considered aircraft because they rely on lift from the air. Another type of aircraft is the spaceplane which is an aircraft designed to fly up to extreme altitudes into space and land as a conventional aircraft.

The human activity which surrounds aircraft is called aviation. Manned aircraft are flown by an onboard pilot. Unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Target drones are an example of UAVs. Aircraft may be classified by different criteria, such as lift type, propulsion, usage and others.

History

The history of aircraft development divides broadly into five eras:

Pioneers of flight

First World War

Inter-war, sometimes called the Golden Age

Second World War

Postwar era, also called the jet age

Methods of lift

Lighter than air – aerostats

Aerostats use buoyancy to float in the air in much the same way that ships float on the water. They are characterized by one or more large gasbags or canopies, filled with a relatively low density gas such as helium, hydrogen or hot air, which is less dense than the surrounding air. When the weight of this is added to the weight of the aircraft structure, it adds up to the same weight as the air that the craft displaces.

Small hot air balloons called sky lanterns date back to the 3rd century BC, and were only the second type of aircraft to fly, the first being kites.

Originally, a balloon was any aerostat, while the term airship was used for large, powered aircraft designs – usually fixed-wing – though none had yet been built. The advent of powered balloons, called dirigible balloons, and later of rigid hulls allowing a great increase in size, began to change the way these words were used. Huge powered aerostats, characterized by a rigid outer framework and separate aerodynamic skin surrounding the gas bags, were produced, the Zeppelins being the largest and most famous. There were still no fixed-wing aircraft or non-rigid balloons large enough to be called airships, so "airship" came to be synonymous with these aircraft. Then several accidents, such as the Hindenburg disaster in 1937, led to the demise of these airships. Nowadays a "balloon" is an unpowered aerostat, whilst an "airship" is a powered one.

A powered, steerable aerostat is called a dirigible. Sometimes this term is applied only to non-rigid balloons, and sometimes dirigible balloon is regarded as the definition of an airship (which may then be rigid or non-rigid). Non-rigid dirigibles are characterized by a moderately aerodynamic gasbag with stabilizing fins at the back. These soon became known as blimps. During the Second World War, this shape was widely adopted for tethered balloons; in windy weather, this both reduces the strain on the tether and stabilizes the balloon. The nickname blimp was adopted along with the shape. In modern times any small dirigible or airship is called a blimp, though a blimp may be unpowered as well as powered.

Heavier than air – aerodynes

Heavier-than-air aircraft must find some way to push air or gas downwards, so that a reaction occurs (by Newton's laws of motion) to push the aircraft upwards. This dynamic movement through the air is the origin of the term aerodyne. There are two ways to produce dynamic upthrust: aerodynamic lift, and powered lift in the form of engine thrust.

Aerodynamic lift involving wings is the most common, with fixed-wing aircraft being kept in the air by the forward movement of wings, and rotorcraft by spinning wing-shaped rotors sometimes called rotary wings. A wing is a flat, horizontal surface, usually shaped in cross-section as an aerofoil. To fly, air must flow over the wing and generate lift. A flexible wing is a wing made of fabric or thin sheet material, often stretched over a rigid frame. A kite is tethered to the ground and relies on the speed of the wind over its wings, which may be flexible or rigid, fixed or rotary.

With powered lift, the aircraft directs its engine thrust vertically downwards.

The initialism VTOL (vertical take off and landing) is applied to aircraft that can take off and land vertically. Most are rotorcraft. Others, such as the Hawker Siddeley Harrier and F-35B, take off and land vertically using powered lift and transfer to aerodynamic lift in steady flight. Similarly, STOL stands for short take off and landing. Some VTOL aircraft often operate in a short take off/vertical landing mode known as STOVL.

A pure rocket is not usually regarded as an aerodyne, because it does not depend on the air for its lift (and can even fly into space); however, many aerodynamic lift vehicles have been powered or assisted by rocket motors. Rocket-powered missiles which obtain aerodynamic lift at very high speed due to airflow over their bodies, are a marginal case.

Fixed-wing

test aircraft]] -8, the Antonov An-225 (aircraft with the greatest payload) and the Hughes H-4 "Spruce Goose" (aircraft with greatest wingspan).]]

Airplanes or aeroplanes are technically called fixed-wing aircraft.

The forerunner of the fixed-wing aircraft is the kite. Whereas a fixed-wing aircraft relies on its forward speed to create airflow over the wings, a kite is tethered to the ground and relies on the wind blowing over its wings to provide lift. Kites were the first kind of aircraft to fly, and were invented in China around 500 BC. Much aerodynamic research was done with kites before test aircraft, wind tunnels and computer modelling programs became available.

The first heavier-than-air craft capable of controlled free flight were gliders. A glider designed by Cayley carried out the first true manned, controlled flight in 1853.

Besides the method of propulsion, fixed-wing aircraft are generally characterized by their wing configuration. The most important wing characteristics are:

Number of wings – Monoplane, biplane, etc.

Wing support – Braced or cantilever, rigid or flexible.

Wing planform – including aspect ratio, angle of sweep and any variations along the span (including the important class of delta wings).

Location of the horizontal stabilizer, if any.

Dihedral angle – positive, zero or negative (anhedral).

A variable geometry aircraft can change its wing configuration during flight.

A flying wing has no fuselage, though it may have small blisters or pods. The opposite of this is a lifting body which has no wings, though it may have small stabilising and control surfaces.

Most fixed-wing aircraft feature a tail unit or empennage incorporating vertical, and often horizontal, stabilising surfaces.

Seaplanes are aircraft that land on water, and they fit into two broad classes: Flying boats are supported on the water by their fuselage. A float plane's fuselage remains clear of the water at all times, the aircraft being supported by two or more floats attached to the fuselage and/or wings. Some examples of both flying boats and float planes are amphibious, being able to take off from and alight on both land and water.

Some people consider wing-in-ground-effect vehicles to be fixed-wing aircraft, others do not. These craft "fly" close to the surface of the ground or water. An example is the Russian ekranoplan (nicknamed the "Caspian Sea Monster"). Man-powered aircraft also rely on ground effect to remain airborne, but this is only because they are so underpowered—the airframe is theoretically capable of flying much higher.

Rotorcraft

, the world's largest production helicopter.]]

Rotorcraft, or rotary-wing aircraft, use a spinning rotor with aerofoil section blades (a rotary wing) to provide lift. Types include helicopters, autogyros and various hybrids such as gyrodynes and compound rotorcraft.

Helicopters have powered rotors. The rotor is driven (directly or indirectly) by an engine and pushes air downwards to create lift. By tilting the rotor forwards, the downwards flow is tilted backwards, producing thrust for forward flight.

Autogyros or gyroplanes have unpowered rotors, with a separate power plant to provide thrust. The rotor is tilted backwards. As the autogyro moves forward, air blows upwards across the rotor, making it spin.(cf. Autorotation) This spinning dramatically increases the speed of airflow over the rotor, to provide lift. Juan de la Cierva (a Spanish civil engineer) used the product name autogiro, and Bensen used gyrocopter. Rotor kites, such as the Focke Achgelis Fa 330 are unpowered autogyros, which must be towed by a tether to give them forward ground speed or else be tether-anchored to a static anchor in a high-wind situation for kited flight.

Gyrodynes are a form of helicopter, where forward thrust is obtained from a separate propulsion device rather than from tilting the rotor. The definition of a 'gyrodyne' has changed over the years, sometimes including equivalent autogyro designs. The Heliplane is a similar idea.

Compound rotorcraft have wings which provide some or all of the lift in forward flight. Compound helicopters and compound autogyros have been built, and some forms of gyroplane may be referred to as compound gyroplanes. They are nowadays classified as powered lift types and not as rotorcraft. Tiltrotor aircraft (such as the V-22 Osprey) have their rotors horizontal for vertical flight, and pivot the rotors vertically like a propeller for forward flight. The Coleopter had a cylindrical wing forming a duct around the rotor. On the ground it sat on its tail, and took off and landed vertically like a helicopter. The whole aircraft would then have tilted forward to fly as a propeller-driven fixed-wing aircraft using the duct as a wing (though this transition was never achieved in practice.)

Some rotorcraft have reaction-powered rotors with gas jets at the tips, but most have one or more lift rotors powered from engine-driven shafts.

Other methods of lift

A lifting body is the opposite of a flying wing. In this configuration the aircraft body is shaped to produce lift. If there are any wings, they are too small to provide significant lift and are used only for stability and control. Lifting bodies are not efficient: they suffer from high drag, and must also travel at high speed to generate enough lift to fly. Many of the research prototypes, such as the Martin-Marietta X-24, which led up to the Space Shuttle were lifting bodies (though the shuttle itself is not), and some supersonic missiles obtain lift from the airflow over a tubular body. The flat bodies of recent jet fighters also produce lift, as in the F-14 Tomcat's "pancake".

Powered lift types rely on engine-derived lift for vertical takeoff and landing (VTOL). Most types transition to fixed-wing lift for horizontal flight. Classes of powered lift types include VTOL jet aircraft (such as the Harrier jump-jet) and tiltrotors (such as the V-22 Osprey), among others. A few examples rely entirely on engine thrust to provide lift throughout the whole flight. There are few practical applications. Experimental designs have been built for personal fan-lift hover platforms and jetpacks or for VTOL research (for example the flying bedstead).

The Flettner airplane has a spinning cylinder in place of a wing, relying on the Magnus effect to create lift.

The FanWing is a recent innovation with some similarities to the Flettner rotor design. It uses a fixed wing with a cylindrical fan mounted spanwise just above. As the fan spins, it creates an airflow backwards over the upper surface of the wing, creating lift. The FanWing is (2010) in development in the United Kingdom.

Propulsion

Unpowered

Gliders

Heavier-than-air unpowered aircraft such as gliders (i.e. sailplanes), hang gliders and paragliders, and other gliders usually do not employ propulsion once airborne. Take-off may be by launching forwards and downwards from a high location, or by pulling into the air on a tow-line, by a ground-based winch or vehicle, or by a powered "tug" aircraft. For a glider to maintain its forward air speed and lift, it must descend in relation to the air (but not necessarily in relation to the ground). Some gliders can 'soar'- gain height from updrafts such as thermal currents. The first practical, controllable example was designed and built by the British scientist and pioneer George Cayley, who many recognise as the first aeronautical engineer.

Balloons

Balloons drift with the wind, though normally the pilot can control the altitude, either by heating the air or by releasing ballast, giving some directional control (since the wind direction changes with altitude). A wing-shaped hybrid balloon can glide directionally when rising or falling; but a spherically shaped balloon does not have such directional control.

Kites

Kites are aircraft that are tethered to the ground or other object (fixed or mobile) that maintains tension in the tether or kite line; they rely on virtual or real wind blowing over and under them to generate lift and drag. Kytoons are balloon kites that are shaped and tethered to obtain kiting deflections, and can be lighter-than-air, neutrally buoyant, or heavier-than air.

Powered

Propeller

-engined DeHavilland Twin Otter adapted as a floatplane]]

A propeller or airscrew comprises a set of small, wing-like aerofoils set around a central hub which spins on an axis aligned in the direction of travel. Spinning the propeller creates aerodynamic lift, or thrust, in a forward direction.

A tractor design mounts the propeller in front of the power source, while a pusher design mounts it behind. Although the pusher design allows cleaner airflow over the wing, tractor configuration is more common because it allows cleaner airflow to the propeller and provides a better weight distribution.

A contra-prop arrangement has a second propeller close behind the first one on the same axis, which rotates in the opposite direction.

A variation on the propeller is to use many broad blades to create a fan. Such fans are traditionally surrounded by a ring-shaped fairing or duct, as ducted fans.

Many kinds of power plant have been used to drive propellers.

The earliest designs used man power to give dirigible balloons some degree of control, and go back to Jean-Pierre Blanchard in 1784. Attempts to achieve heavier-than-air man-powered flight did not succeed fully until Paul MacCready's Gossamer Condor in 1977. , a human-powered aircraft]]

The first powered flight was made in a steam-powered dirigible by Henri Giffard in 1852. Attempts to marry a practical lightweight steam engine to a practical fixed-wing airframe did not succeed until much later, by which time the internal combustion engine was already dominant.

From the first controlled powered fixed-wing aircraft flight by the Wright brothers until World War II, propellers turned by the internal combustion piston engine were virtually the only type of propulsion system in use. The piston engine is still used in the majority of smaller aircraft produced, since it is efficient at the lower altitudes and slower speeds suited to propellers.

Turbine engines need not be used as jets (see below), but may be geared to drive a propeller in the form of a turboprop. Modern helicopters also typically use turbine engines to power the rotor. Turbines provide more power for less weight than piston engines, and are better suited to small-to-medium size aircraft or larger, slow-flying types. Some turboprop designs (see below) mount the propeller directly on an engine turbine shaft, and are called propfans.

Since the 1940s, propellers and propfans with swept tips or curved "scimitar-shaped" blades have been studied for use in high-speed applications so as to delay the onset of shockwaves, in similar manner to wing sweepback, where the blade tips approach the speed of sound. The Airbus A400M turboprop transport aircraft is expected to provide the first production example: note that it is not a propfan because the propellers are not mounted direct on the engine shaft but are driven through reduction gearing.

Other less common power sources include:

Electric motors, often linked to solar panels to create a solar-powered aircraft.

Rubber bands, wound many times to store energy, are mostly used for flying models.

Jet

Airbreathing jet engines provide thrust by taking in air, burning it with fuel in a combustion chamber, and accelerating the exhaust rearwards so that it ejects at high speed. The reaction against this acceleration provides the engine thrust.

Boeing 777 taking off]]

Jet engines can provide much higher thrust than propellers, and are naturally efficient at higher altitudes, being able to operate above . They are also much more fuel-efficient at normal flight speeds than rockets. Consequently, nearly all high-speed and high-altitude aircraft use jet engines.

The early turbojet and modern turbofan use a spinning turbine to create airflow for takeoff and to provide thrust. Many, mostly in military aviation, use afterburners which inject extra fuel into the exhaust.

Use of a turbine is not absolutely necessary: other designs include the crude pulse jet, high-speed ramjet and the still-experimental supersonic-combustion ramjet or scramjet. These designs require an existing airflow to work and cannot work when stationary, so they must be launched by a catapult or rocket booster, or dropped from a mother ship.

The bypass turbofan engines of the Lockheed SR-71 were a hybrid design – the aircraft took off and landed in jet turbine configuration, and for high-speed flight the afterburner was lit and the turbine bypassed, to create a ramjet.

The motorjet was a very early design which used a piston engine in place of the combustion chamber, similar to a turbocharged piston engine except that the thrust is derived from the turbine instead of the crankshaft. It was soon superseded by the turbojet and remained a curiosity.

Helicopters

, a multi-role utility helicopter.]]

The rotor of a helicopter, may, like a propeller, be powered by a variety of methods such as an internal-combustion engine or jet turbine. Tip jets, fed by gases passing along hollow rotor blades from a centrally mounted engine, have been experimented with. Attempts have even been made to mount engines directly on the rotor tips.

Helicopters obtain forward propulsion by angling the rotor disc so that a proportion of its lift is directed forwards to provide thrust.

Other methods of propulsion

Rocket-powered aircraft have occasionally been experimented with, and the Messerschmitt Komet fighter even saw action in the Second World War. Since then they have been restricted to rather specialised niches, such as the Bell X-1 which broke the sound barrier or the North American X-15 which traveled up into space where no oxygen is available for combustion (rockets carry their own oxidant). Rockets have more often been used as a supplement to the main powerplant, typically to assist takeoff of heavily loaded aircraft, but also in a few experimental designs such as the Saunders-Roe SR.53 to provide a high-speed dash capability.

The flapping-wing ornithopter is a category of its own. These designs may have potential, but no practical device has been created beyond research prototypes, simple toys, and a model hawk used to freeze prey into stillness so that it can be captured.

General construction

Airframe

helicopter]] The airframe of an aircraft is its mechanical structure, which is typically considered to exclude the propulsion system. Airframe design is a field of engineering that combines aerodynamics, materials technology and manufacturing methods to achieve balances of performance, reliability and cost.

The main parts of the airframe are the fuselage, wing and tail or empennage.

Fuselage

shown in brown]] The fuselage (from the French fuselé "spindle-shaped") is an aircraft's main body section that holds crew and passengers or cargo. In single-engine aircraft it will usually contain an engine, although in some amphibious aircraft the single engine is mounted on a pylon attached to the fuselage which in turn is used as a floating hull. The fuselage also serves to position control and stabilization surfaces in specific relationships to lifting surfaces, required for aircraft stability and maneuverability.

Wing

The wing is the most important part of any fixed-wing aircraft. Many different styles and arrangements of wings have been used on heavier-than-air aircraft, and some lighter-than-air craft also have wings.

Most early fixed-wing aircraft were biplanes, having two wing planes stacked one above the other on either side. Nowadays most types are monoplanes, having one wing each side.

Wings also vary greatly in planform which is their shape viewed from above. The width of a wing from tip to tip is called its span. Slow aircraft need a wide span to generate lift, while fast aircraft have a narrow span to reduce backwards drag from the airflow.

Empennage

Coordinates	30°19′10″N81°39′36″N
Name	Empennage
Caption	The empennage of a Boeing 747-200

Empennage ( or ) is an aviation term used to describe the tail section of an aircraft. The empennage is also known as the tail or tail assembly; all three terms may be used interchangeably.

The empennage gives stability to the aircraft and controls the flight dynamics of pitch and yaw. The term is somewhat loosely applied, and can also refer to other measurements such as maneuverability. When a plane is pushed, for instance by diving it at high speeds, it is said to be flown "outside the envelope", something considered rather dangerous.

Flight envelope is one of a number of related terms that are all used in a similar fashion. It is perhaps the most common term because it is the oldest, first being used in the early days of test flying. It is closely related to more modern terms known as extra power and a doghouse plot which are different ways of describing a flight envelope.

Aircraft range

is the longest-range commercial airliner, capable of flights of more than halfway around the world.]] The maximal total range is the distance an aircraft can fly between takeoff and landing, as limited by fuel capacity in powered aircraft, or cross-country speed and environmental conditions in unpowered aircraft.

Ferry range means the maximum range the aircraft can fly. This usually means maximum fuel load, optionally with extra fuel tanks and minimum equipment. It refers to transport of aircraft for use on remote location.

Combat range is the maximum range the aircraft can fly when carrying ordnance.

Combat radius is a related measure based on the maximum distance a warplane can travel from its base of operations, accomplish some objective, and return to its original airfield with minimal reserves.

The fuel time limit for powered aircraft is fixed by the fuel load and rate of consumption. When all fuel is consumed, the engines stop and the aircraft will lose its propulsion. For unpowered aircraft, the maximum flight time is variable, limited by available daylight hours, weather conditions, and pilot endurance.

The range can be seen as the cross-country ground speed multiplied by the maximum time in the air. The range equation will derived in this article for propeller and jet aircraft.

Aircraft flight dynamics

Flight dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of mass, known as pitch, roll and yaw (quite different from their use as Tait-Bryan angles).

Aerospace engineers develop control systems for a vehicle's orientation (attitude) about its center of mass. The control systems include actuators, which exert forces in various directions, and generate rotational forces or moments about the aerodynamic center of the aircraft, and thus rotate the aircraft in pitch, roll, or yaw. For example, a pitching moment is a vertical force applied at a distance forward or aft from the aerodynamic center of the aircraft, causing the aircraft to pitch up or down.

Roll, pitch and yaw refer to rotations about the respective axes starting from a defined equilibrium state. The equilibrium roll angle is known as wings level or zero bank angle, equivalent to a level heeling angle on a ship. Yaw is known as "heading". The equilibrium pitch angle in submarine and airship parlance is known as "trim", but in aircraft, this usually refers to angle of attack, rather than orientation. However, common usage ignores this distinction between equilibrium and dynamic cases.

The most common aeronautical convention defines the roll as acting about the longitudinal axis, positive with the starboard (right) wing down. The yaw is about the vertical body axis, positive with the nose to starboard. Pitch is about an axis perpendicular to the longitudinal plane of symmetry, positive nose up.

A fixed-wing aircraft increases or decreases the lift generated by the wings when it pitches nose up or down by increasing or decreasing the angle of attack (AOA). The roll angle is also known as bank angle on a fixed-wing aircraft, which usually "banks" to change the horizontal direction of flight. An aircraft is usually streamlined from nose to tail to reduce drag making it typically advantageous to keep the sideslip angle near zero, though there are instances when an aircraft may be deliberately "sideslipped" for example a slip in a fixed-wing aircraft.

Areas of use

The major distinction in aircraft types is between military aircraft, which includes not just combat types but many types of supporting aircraft, and civil aircraft, which include all non-military types. , a Swedish multi-role fighter aircraft.]]

Military

A military aircraft is any fixed-wing or rotary-wing aircraft that is operated by a legal or insurrectionary armed service of any type.]]

The formal designation of "experimental aircraft" also includes other types which are "not certified for commercial applications", including one-off modifications of existing aircraft such as the modified Boeing 747 which NASA uses to ferry the space shuttle from landing site to launch site, and aircraft homebuilt by amateurs for their own personal use.

Model

A model aircraft is a small unmanned type made to fly for fun, for static display, for aerodynamic research (cf Reynolds number) or for other purposes. A scale model is a replica of some larger design.

Aircraft manufacture

Manufacturers and types

Within any general category, aircraft are usually listed according to manufacturer and production type. :Also see: List of aircraft

Aircraft design

See also

Lists

List of aircraft by category

*List of Airliners by Historical Epoch

*List of civil aircraft

*List of early flying machines

*List of helicopter models

*List of large aircraft

*List of military aircraft

*List of Regional Airliners

*List of World War II jet aircraft

List of aircraft by date and usage category

List of aircraft engines

List of altitude records reached by different aircraft types

*

Topics

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Air safety

Airmail

Airmails of the United States

Air transports of Heads of State

Aerial refuelling

Aircraft design process

Aircraft axis

Aircraft carrier

Aircraft spotting

Airline call signs

Aviation

Balloon (aircraft)

Cabin pressurization

Contrail

First flying machine

|width=10px|  |width=200px valign=top|

Flight controls

Flight instruments

Flight tracking

Flight planning

Flying car/roadable aircraft

General aviation in Europe

Gliding

Loss of structural integrity on an aircraft

Military aircraft

Model rocket

Noise pollution

Personal air vehicle

Powered parachute

Powered paragliding

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Pressure suit

Rocket

Rocket engine

Rocket propellant

Spacecraft

Spaceflight

Spaceplane

Space Shuttle program

Stealth aircraft

Steam aircraft

Surveillance aircraft

Wide-body aircraft

|}

References

External links

History

History of Aviation in Australia - State Library of NSW

Prehistory of Powered Flight

The Channel Crossing

The Evolution of Modern Aircraft (NASA)

Virtual Museum

Smithsonian Air and Space Museum – Online collection with a particular focus on history of aircraft and spacecraft

New Scientist's History of Aviation

Amazing Early Flying Machines slideshow by Life magazine

Aircraft Types

Information

Airliners.net

Aviation Dictionary Free aviation terms, phrases and jargons

New Scientist's Aviation page

Aircraft Components Technology

Category:Aviation terminology

China () is seen variously as an ancient civilization extending over a large area in East Asia, a nation and/or a multinational entity.

With nearly 4,000 years of continuous history, China is one of the world's oldest civilizations. Prior to the 19th century, it possessed one of the most advanced societies and economies in the world; but through successive dynasties it then missed the Industrial Revolution in Europe and began to decline. In the 19th and 20th century, imperialism, internal weakness and civil wars damaged the country and its economy, and led to the overthrow of imperial rule.

In 1949, after major combat ended in the Chinese Civil War, two states calling themselves "China" emerged: The People's Republic of China (PRC), established in 1949, commonly known as China, has control over mainland China and the largely self-governing territories of Hong Kong (since 1997) and Macau (since 1999). The Republic of China (ROC) established in 1912 in mainland China, now commonly known as Taiwan, has control over the islands of Taiwan, Penghu, Kinmen, Matsu, the Pratas island group, and a few other outlying islands.

In the 1950s, change to economic policies in Taiwan transformed the island into a technology-oriented industrialized developed economy after a period of high growth rates and rapid industrialization. In mainland China, in the 1970s, reforms known as the Four Modernizations improved agriculture, industry, technology and defense, raising living standards and making the PRC one of the great powers. By 2011 challenges included the growing divide between rich and poor, environmental degradation, and rampant corruption.

Historically, the cultural sphere of China has extended across East Asia as a whole, with Chinese religion, customs, and writing systems being adopted to varying degrees by neighbors such as Japan, Korea and Vietnam. Through its history, China was the source of many major inventions. It has also one of the world's oldest written language systems. The first evidence of human presence in the region was found at the Zhoukoudian cave. It is one of the earliest known specimens of Homo erectus, now commonly known as the Peking Man, estimated to have lived from 300,000 to 780,000 years ago.

Etymology

(top) and simplified (bottom) characters for "China" in Chinese. The first character means "middle" or "center", and the second character means "country" or "state."]]

English names

The word "China" is derived from Cin (چین), a Persian name for China popularized in Europe by Marco Polo. The first recorded use in English dates from 1555. In early usage, "china" as a term for porcelain was spelled differently from the name of the country, the two words being derived from separate Persian words. Both these words are derived from the Sanskrit word Cīna (चीन),

There are various scholarly theories regarding the origin of this word. The traditional theory, proposed in the 17th century by Martino Martini, is that "China" is derived from "Qin" (秦, pronounced chin), the westernmost of the Chinese kingdoms during the Zhou Dynasty, or from the succeeding Qin Dynasty (221 – 206 BC). In the Hindu scriptures Mahābhārata (5th century BC) and Manusmṛti (Laws of Manu) (2nd century BC), the Sanskrit word Cīna (चीन) is used to refer to a country located in the Tibeto-Burman borderlands east of India. Another theory is that this word is derived from Yelang, an ancient kingdom in what is now Guizhou whose inhabitants referred to themselves as 'Zina'.

Chinese names

The official name of China changed with each dynasty or with each new government, the imperial governments referred to themselves as the Empire of the Great Qing, Empire of the Great Ming, etc. However, the common name remained as Zhōngguó (, ) through dynastic changes. This translates traditionally as "the central Kingdom", or as "the middle country".

The name Zhōngguó first appeared in the Classic of History (6th century BC), and was used to refer to the late Zhou Dynasty, as they believed that they were the "center of civilization," while peoples in the four cardinals were called Eastern Yi, Southern Man, Western Rong and Northern Di respectively. Some texts imply that "Zhōngguó" was originally meant to refer to the capital of the sovereign, to differ from the capital of his vassals. The use of "Zhōngguó" implied a claim of political legitimacy, and "Zhōngguó" was often used by states who saw themselves as the sole legitimate successor to previous Chinese dynasties; for example, in the era of the Southern Song Dynasty, both the Jin Dynasty and the Southern Song state claimed to be "Zhōngguó."

Zhōngguó was used as a common name for the Republic of China (Zhonghua Minguo) after its establishment in 1912. After the Communists took over control of mainland China in 1949, they established the People's Republic of China (PRC). After the ROC's loss of the UN "China" seat in 1971, the PRC gained the ability to be the "representative" of "China" under the One-China policy and as a result is now commonly known as "China" or "Zhōngguó" in Chinese. The Republic of China nowadays is commonly known as "Taiwan".

History

Ancient China was one of the earliest centers of human civilization. Chinese civilization was also one of the few to invent writing,

Prehistory

Archaeological evidence suggests that the earliest hominids in China date from 250,000 to 2.24 million years ago. A cave in Zhoukoudian (near present-day Beijing) has fossils dated at somewhere between 300,000 to 780,000 years.

Dynastic rule

, 17th to 11th Century BC.]] Chinese tradition names the first dynasty Xia, but it was considered mythical until scientific excavations found early Bronze Age sites at Erlitou in Henan Province in 1959. Archaeologists have since uncovered urban sites, bronze implements, and tombs in locations cited as Xia's in ancient historical texts, but it is impossible to verify that these remains are of the Xia without written records from the period.

of the Qin Dynasty, ca. 210 BC.]] The first Chinese dynasty that left historical records, the loosely feudal Shang (Yin), settled along the Yellow River in eastern China from the 17th to the 11th century BC. The Oracle bone script of the Shang Dynasty represent the oldest forms of Chinese writing found and the direct ancestor of modern Chinese characters used throughout East Asia. The Shang were invaded from the west by the Zhou, who ruled from the 12th to the 5th century BC, until their centralized authority was slowly eroded by feudal warlords. Many independent states eventually emerged out of the weakened Zhou state, and continually waged war with each other in the Spring and Autumn Period, only occasionally deferring to the Zhou king. By the time of the Warring States Period, there were seven powerful sovereign states, each with its own king, ministry and army.

The first unified Chinese state was established by Qin Shi Huang of the Qin state in 221 BC, who proclaimed himself as the "First Emperor" and created many reforms in the Empire, notably the forced standardization of the Chinese language and measurements. The Qin Dynasty lasted only fifteen years, as its harsh legalist and authoritarian policies soon led to widespread rebellion.

The subsequent Han Dynasty ruled China between 206 BC and 220 AD, and created a lasting Han cultural identity among its populace that extends to the present day. The Han Dynasty expanded the empire's territory considerably with military campaigns reaching Korea, Vietnam, Mongolia and Central Asia, and also helped establish the Silk Road in Central Asia.

After Han's collapse, another period of disunion followed, including the highly chivalric period of the Three Kingdoms. Independent Chinese states of this period such as Wu opened diplomatic relations with Japan, introducing the Chinese writing system there. In 580 AD, China was reunited under the Sui. However, the Sui Dynasty was short-lived after a failure in the Goguryeo-Sui Wars (598–614) weakened it. celadon porcelain pieces from Zhejiang province, during the Song Dynasty]]

Under the succeeding Tang and Song dynasties, Chinese technology and culture reached its zenith. The Tang Empire was at its height of power until the middle of the 8th century, when the An Shi Rebellion destroyed the prosperity of the empire. The Song Dynasty was the first government in world history to issue paper money and the first Chinese polity to establish a permanent standing navy. Between the 10th and 11th centuries, the population of China doubled in size. This growth came about through expanded rice cultivation in central and southern China, and the production of abundant food surpluses.

Within its borders, the Northern Song Dynasty had a population of some 100 million people. The Song Dynasty was a culturally rich period for philosophy and the arts. Landscape art and portrait painting were brought to new levels of maturity and complexity after the Tang Dynasty, and social elites gathered to view art, share their own, and trade precious artworks. Philosophers such as Cheng Yi and Chu Hsi reinvigorated Confucianism with new commentary, infused Buddhist ideals, and emphasized a new organization of classic texts that brought about the core doctrine of Neo-Confucianism. ; daily life of people from the Song period at the capital, Bianjing, today's Kaifeng.]] In 1271, the Mongol leader and fifth Khagan of the Mongol Empire Kublai Khan established the Yuan Dynasty, with the last remnant of the Song Dynasty falling to the Yuan in 1279. Before the Mongol invasion, Chinese dynasties reportedly had approximately 120 million inhabitants; after the conquest was completed in 1279, the 1300 census reported roughly 60 million people. A peasant named Zhu Yuanzhang overthrew the Mongols in 1368 and founded the Ming Dynasty. Ming Dynasty thinkers such as Wang Yangming would further critique and expand Neo-Confucianism with ideas of individualism and innate morality that would have tremendous impact on later Japanese thought. Chosun Korea also became a nominal vassal state of Ming China and adopted much of its Neo-Confucian bureaucratic structure.

Under the Ming Dynasty, China had another golden age, with one of the strongest navies in the world, a rich and prosperous economy and a flourishing of the arts and culture. It was during this period that Zheng He led explorations throughout the world, possibly reaching America. During the early Ming Dynasty China's capital was moved from Nanjing to Beijing. In 1644 Beijing was sacked by a coalition of rebel forces led by Li Zicheng, a minor Ming official turned leader of the peasant revolt. The last Ming Chongzhen Emperor committed suicide when the city fell. The Manchu Qing Dynasty then allied with Ming Dynasty general Wu Sangui and overthrew Li's short-lived Shun Dynasty, and subsequently seized control of Beijing, which became the new capital of the Qing Dynasty.

The Qing Dynasty, which lasted until 1912, was the last dynasty in China. In the 19th century the Qing Dynasty adopted a defensive posture towards European imperialism, even though it engaged in imperialistic expansion into Central Asia. At this time China awoke to the significance of the rest of the world, the West in particular. As China opened up to foreign trade and missionary activity, opium produced by British India was forced onto Qing China. Two Opium Wars with Britain weakened the Emperor's control. European imperialism proved to be disastrous for China: ship Celestial Empire]]

The Arrow War (1856–1860) [2nd Opium War] saw another disastrous defeat for China. The subsequent passing of the humiliating Treaty of Tianjin in 1856 and the Beijing Conventions of 1860 opened up more of the country to foreign penetrations and more ports for their vessels. Hong Kong was ceded over to the British. Thus, the "unequal treaties system" was established. Heavy indemnities had to be paid by China, and more territory and control were taken over by the foreigners.

The weakening of the Qing regime, and the apparent humiliation of the unequal treaties in the eyes of the Chinese people had several consequences. One consequence was the Taiping Civil War, which lasted from 1851 to 1862. It was led by Hong Xiuquan, who was partly influenced by an idiosyncratic interpretation of Christianity. Hong believed himself to be the son of God and the younger brother of Jesus. Although the Qing forces were eventually victorious, the civil war was one of the bloodiest in human history, costing at least 20 million lives (more than the total number of fatalities in the World War I), with some estimates of up to two hundred million. Other costly rebellions followed the Taiping Rebellion, such as the Punti-Hakka Clan Wars (1855–67), Nien Rebellion (1851–1868), Miao Rebellion (1854–73), Panthay Rebellion (1856–1873) and the Dungan revolt (1862–1877). at night; the palace was the residence for the imperial family from the reign of the Yongle Emperor of the Ming Dynasty in the 15th century until the fall of the Qing Dynasty in 1912.]] These rebellions resulted in an estimated loss of several million lives each and led to disastrous results for the economy and the countryside. The flow of British opium hastened the empire's decline. In the 19th century, the age of colonialism was at its height and the great Chinese Diaspora began. About 35 million overseas Chinese live in Southeast Asia today. The famine in 1876–79 claimed between 9 and 13 million lives in northern China. From 108 BC to 1911 AD, China experienced 1,828 famines, or one per year, somewhere in the empire.

While China was wracked by continuous war, Meiji Japan succeeded in rapidly modernizing its military and set its sights on Korea and Manchuria. At the request of the Korean emperor, the Chinese government sent troops to aid in suppressing the Tonghak Rebellion in 1894. However, Japan also sent troops to Korea, leading to the First Sino-Japanese War, which resulted in Qing China's loss of influence in the Korean Peninsula as well as the cession of Taiwan to Japan.

Following this series of defeats, a reform plan for the empire to become a modern Meiji-style constitutional monarchy was drafted by the Guangxu Emperor in 1898, but was opposed and stopped by the Empress Dowager Cixi, who placed Emperor Guangxu under house arrest in a coup d'état. Further destruction followed the ill-fated 1900 Boxer Rebellion against westerners in Beijing.

By the early 20th century, mass civil disorder had begun, and calls for reform and revolution were heard across the country. The 38-year-old Emperor Guangxu died under house arrest on 14 November 1908, suspiciously just a day before Cixi's own death. With the throne empty, he was succeeded by Cixi's handpicked heir, his two year old nephew Puyi, who became the Xuantong Emperor. Guangxu's consort became the Empress Dowager Longyu. In another coup de'tat, Yuan Shikai overthrew the last Qing emperor, and forced empress Dowager Longyu to sign the abdication decree as regent in 1912, ending two thousand years of imperial rule in China. She died, childless, in 1913.

Republic of China (1912–49)

and Chiang Kai-shek at the founding of the Whampoa Military Academy. Flags of the Republic of China and the Nationalist Party shown.]] On 1 January 1912, the Republic of China was established, heralding the end of the Qing Dynasty. Sun Yat-sen of the Kuomintang (the KMT or Nationalist Party) was proclaimed provisional president of the republic. However, the presidency was later given to Yuan Shikai, a former Qing general, who had ensured the defection of the entire Beiyang Army from the Qing Empire to the revolution. In 1915, Yuan proclaimed himself Emperor of China but was forced to abdicate and return the state to a republic when he realized it was an unpopular move, not only with the population but also with his own Beiyang Army and its commanders.

After Yuan Shikai's death in 1916, China was politically fragmented, with an internationally recognized but virtually powerless national government seated in Peking (Beijing). Warlords in various regions exercised actual control over their respective territories. In the late 1920s, the Kuomintang, under Chiang Kai-shek, was able to reunify the country under its own control, moving the nation's capital to Nanking (Nanjing) and implementing "political tutelage", an intermediate stage of political development outlined in Sun Yat-sen's program for transforming China into a modern, democratic state. Effectively, political tutelage meant one-party rule by the Kuomintang.

The Second Sino-Japanese War (1937–1945) (part of World War II) forced an uneasy alliance between the Nationalists and the Communists as well as causing around 20 million Chinese civilian deaths. With the surrender of Japan in 1945, China emerged victorious but financially drained. The continued distrust between the Nationalists and the Communists led to the resumption of the Chinese Civil War. In 1947, constitutional rule was established, but because of the ongoing Civil War many provisions of the ROC constitution were never implemented in mainland China.

Post Civil War (1949–present)

After its victory in the Chinese Civil War, the Communist Party of China (CPC) led by Mao Zedong gained control of most of Mainland China. On 1 October 1949, they established the People's Republic of China as a socialist state headed by a "Democratic Dictatorship" with the CPC as the ruling political party, thus, laying claim as the successor state of the ROC. The central government of the Kuomintang (Chinese Nationalist Party) led by Chiang Kai-shek retreated to the island of Taiwan that it had administered at the end of World War II, and moved the ROC government there. Major armed hostilities ceased in 1950 but no peace treaty has been signed.

Beginning in the late 1970s, the Republic of China began the implementation of full, multi-party, representative democracy in the territories still under its control (Taiwan, and a number of smaller islands including Quemoy and Matsu). Today, the ROC has active political participation by all sectors of society. The main cleavage in ROC politics is the issue of eventual political unification with the Chinese mainland vs. formal independence of Taiwan. proclaiming the establishment of the People's Republic of China in 1949.]] After the Chinese Civil War, mainland China saw a dramatic improvement in life expectancy, leading to an explosion in population. A series of disruptive socioeconomic movements started in the late 1950s with the Great Leap Forward and continued in the 1960s with the Cultural Revolution. The Great Chinese Famine resulted in an estimated 30 to 36 million deaths. With the death of its first generation Communist Party leaders such as Mao Zedong and Zhou Enlai, the PRC began implementing a series of political and economic reforms advocated by Deng Xiaoping that eventually formed the foundation for mainland China's rapid economic development starting in the 1990s.

Post-1978 reforms in mainland China have led to some relaxation of control over many areas of society. However, the PRC government still has almost absolute control over politics, and it continually seeks to eradicate what it perceives as threats to the social, political and economic stability of the country. Examples include the fight against terrorism, jailing of political opponents and journalists, custody regulation of the press, regulation of religion, and suppression of independence/secessionist movements. In 1989, the student protests at Tiananmen Square were violently put to an end by the Chinese military after 15 days of martial law. In 1997, Hong Kong was ceded to the PRC by the United Kingdom, and in 1999, Macau was handed over by Portugal.

Since 1949, mainland China is administered by the People's Republic of China—a one-party state under the leadership of the Chinese Communist Party—while the island of Taiwan and surrounding islands are administered by the Republic of China—a democratic multi-party state. After the founding of the People's Republic in 1949, both states claimed to be the sole legitimate ruler of all of China. After the Kuomintang retreat to Taiwan in 1949, the Republic of China had maintained official diplomatic relations with most states around the world, but by the 1970s, a shift had occurred in international diplomatic circles and the People's Republic of China gained the upper hand in international diplomatic relations and recognition count.

In 1971, under UN resolution 2758, the representatives of Chiang Kai-shek to the United Nations were expelled from the intergovernmental organization. With the expulsion of the representatives, and effectively the Republic of China, the representatives of the People's Republic of China were invited to assume China's seat on the UN Security Council, the UN General Assembly and other United Nations councils and agencies. Later attempts by the Republic of China to rejoin the UN have either been blocked by the People's Republic of China, which has veto power on the UN Security Council, or rejected by the United Nations Secretariat or a United Nations General Assembly committee responsible for the General Assembly's agenda.

Since the relocation of its capital to Taiwan, the Republic of China has not formally renounced its claim to authority over all of China, nor has it changed its official maps, which include the mainland and Mongolia. Following the introduction of full democracy, and the electoral victory of the DPP's Chen Shui-bian in the presidential elections, the ROC had adopted a policy of separating the state's identity from "China", while moving towards identifying the state as "Taiwan".

However, the ROC has not made any formal moves to change the name, flag, or national anthem of the state to reflect a Taiwanese identity due to the lack of consensus within Taiwan, pressure from the United States and the fear of invasion or military action from the People's Republic of China against the island. The Republic of China during the DPP years did not actively pursue its claims on mainland China or Mongolia. However, after having been elected as president, KMT's Ma Ying-jeou asserted that, constitutionally, mainland China is part of the Republic of China. The People's Republic of China claims to have succeeded the Republic of China as the sole legitimate governing authority of all of China, which, from the official viewpoint of the People's Republic of China, includes the island of Taiwan.

Over the last 50 years, both the Republic of China and the People's Republic of China have used diplomatic and economic means to compete for recognition in the international arena. Because most international, intergovernmental organizations observe the One-China policy of the People's Republic of China, the PRC has been able to pressure organizations, such as the World Health Organization and the International Olympic Committee, to refuse to officially recognize the Republic of China. Due to the One-China policy, states around the world are pressured to refuse, or to cut off diplomatic relations with the Republic of China. As a result, 23 U.N. member states currently maintain official diplomatic relations with the Republic of China, while the vast majority of U.N. member states maintain official diplomatic relations with the People's Republic of China.

Territory and environment

Historical political divisions

Top-level political divisions of China have altered as administrations changed. Top levels included circuits and provinces. Below that, there have been prefectures, subprefectures, departments, commanderies, districts, and counties. Recent divisions also include prefecture-level cities, county-level cities, towns and townships.

Most Chinese dynasties were based in the historical heartlands of China, known as China proper. Various dynasties also expanded into peripheral territories like Inner Mongolia, Manchuria, Xinjiang, and Tibet. The Manchu-established Qing Dynasty and its successors, the ROC and the PRC, incorporated these territories into the Chinese empire.

Geography and climate

China ranges from mostly plateaus and mountains in the west to lower lands in the east. Principal rivers flow from west to east, including the Yangtze (central), the Yellow River (Huang He, north-central), and the Amur (northeast), and sometimes toward the south (including the Pearl River, Mekong (river), and Brahmaputra), with most Chinese rivers emptying into the Pacific Ocean.

In the east, along the shores of the Yellow Sea and the East China Sea there are extensive and densely populated alluvial plains. On the edges of the Inner Mongolian plateau in the north, grasslands can be seen. Southern China is dominated by hills and low mountain ranges. In the central-east are the deltas of China's two major rivers, the Yellow and Yangtze rivers. Most of China's arable lands lie along these rivers, and they were the centers of China's major ancient civilizations. Other major rivers include the Pearl River, Mekong, Brahmaputra and Amur. Yunnan Province is considered a part of the Greater Mekong Subregion, which also includes Myanmar, Laos, Thailand, Cambodia, and Vietnam. In the west, the north has a great alluvial plain, and the south has a vast calcareous tableland traversed by hill ranges of moderate elevation, and the Himalayas, containing Earth's highest point, Mount Everest. The northwest also has high plateaus with more arid desert landscapes such as the Takla-Makan and the Gobi Desert, which has been expanding. During many dynasties, the southwestern border of China has been the high mountains and deep valleys of Yunnan, which separate modern China from Burma, Laos and Vietnam.

The Paleozoic formations of China, excepting only the upper part of the Carboniferous system, are marine, while the Mesozoic and Tertiary deposits are estuarine and freshwater, or else of terrestrial origin. Groups of volcanic cones occur in the Great Plain of north China. In the Liaodong and Shandong Peninsulas, there are basaltic plateaus.

The climate of China varies greatly. The northern zone (containing Beijing) has summer daytime temperatures of more than 30 degrees Celsius and winters of Arctic severity. The central zone (containing Shanghai) has a temperate continental climate with very hot summers and cold winters. The southern zone (containing Guangzhou) has a subtropical climate with very hot summers and mild winters.

Due to a prolonged drought and poor agricultural practices, dust storms have become usual in the spring in China. Dust has blown to southern Mainland China and Taiwan, and has reached the West Coast of the United States. Water, erosion, and pollution control have become important issues in China's relations with other countries.

Economy

China was for a large part of the last two millennia the world's largest economy. However, in the later part of the Qing Dynasty, China's economic development began to slow and Europe's rapid development during and after the Industrial Revolution enabled it to surpass China.

Many analysts assert that modern China is one of the leading examples of state capitalism in the 21st century.

Culture

, a highly influential Neo-Confucian]] (Beijing Opera) performance in Beijing of the historical character Yang Guifei.]] Confucianism was the official philosophy throughout most of Imperial China's history, and mastery of Confucian texts was the primary criterion for entry into the imperial bureaucracy. China's traditional values were derived from various versions of Confucianism. A number of more authoritarian strains of thought have also been influential, such as Legalism.

There was often conflict between the philosophies, e.g. the Song Dynasty Neo-Confucians believed Legalism departed from the original spirit of Confucianism. Examinations and a culture of merit remain greatly valued in China today. In recent years, a number of New Confucians (not to be confused with Neo-Confucianism) have advocated that democratic ideals and human rights are quite compatible with traditional Confucian "Asian values".

With the rise of European economic and military power beginning in the mid-19th century, non-Chinese systems of social and political organization gained adherents in China. Some of these would-be reformers totally rejected China's cultural legacy, while others sought to combine the strengths of Chinese and European cultures. In essence, the history of 20th-century China is one of experimentation with new systems of social, political, and economic organization that would allow for the reintegration of the nation in the wake of dynastic collapse.

Arts, scholarship, and literature

by Mi Fu, Song Dynasty, ca. 1100 CE]]

, a traditional Chinese stringed musical instrument, favored by scholars and the nobility, as highlighted in the Book of Rites: "a gentleman does not part with his qin or se without good reason."]]

Calligraphy later became commercialized, and works by famous artists became prized possessions. Chinese literature has a long past; the earliest classic work in Chinese, the I Ching or "Book of Changes" dates to around 1000 BC. A flourishing of philosophy during the Warring States Period produced such noteworthy works as Confucius's Analects and Laozi's Tao Te Ching. (See also: the Chinese classics.) Dynastic histories were often written, beginning with Sima Qian's seminal Records of the Grand Historian, which was written from 109 BC to 91 BC.

The Tang Dynasty witnessed a poetic flowering, while the Four Great Classical Novels of Chinese literature were written during the Ming and Qing Dynasties. Printmaking in the form of movable type was developed during the Song Dynasty. Academies of scholars sponsored by the empire were formed to comment on the classics in both printed and handwritten form. Royalty frequently participated in these discussions as well.

The Song Dynasty was also a period of great scientific literature, and saw the creation of works such as Su Song's Xin Yixiang Fayao and Shen Kuo's Dream Pool Essays. There were also enormous works of historiography and large encyclopedias, such as Sima Guang's Zizhi Tongjian of 1084 AD or the Four Great Books of Song fully compiled and edited by the 11th century.

For centuries, religious and social advancement in China could be achieved through high performance on the imperial examinations. This led to the creation of a meritocracy, although success was available only to males who could afford test preparation. Imperial examinations required applicants to write essays and demonstrate mastery of the Confucian classics. Those who passed the highest level of the exam became elite scholar-officials known as jinshi, a highly esteemed socio-economic position.

Chinese philosophers, writers and poets were highly respected and played key roles in preserving and promoting the culture of the empire. Some classical scholars, however, were noted for their daring depictions of the lives of the common people, often to the displeasure of authorities.The Chinese invented numerous musical instruments, such as the zheng (zither with movable bridges), qin (bridgeless zither), sheng (free reed mouth organ), and xiao (vertical flute) and adopted and developed others such the erhu (alto fiddle or bowed lute) and pipa (pear-shaped plucked lute), many of which later spread throughout East Asia and Southeast Asia, particularly to Japan, Korea, and Vietnam.

Demography

and the Republic of China]] Hundreds of ethnic groups have existed in China throughout its history. The largest ethnic group in China by far is the Han. This group, however, is internally diverse and can be further divided into smaller ethnic groups that share similar traits.

Over the last three millennia, many previously distinct ethnic groups in China have been Sinicized into a Han identity, which over time dramatically expanded the size of the Han population. However, these assimilations were usually incomplete, and vestiges of indigenous language and culture still often remain in various regions of China. Because of this, many within the Han identity have maintained distinct linguistic and cultural traditions while still identifying as Han.

Several ethnicities have also dramatically shaped Han culture, e.g. the Manchurian clothing called the qipao became the new "Chinese" fashion after the 17th century, replacing earlier Han styles of clothing such as the Hanfu. The modern term Chinese nation (Zhonghua Minzu) is now used to describe a notion of a Chinese nationality that transcends ethnic divisions.

Languages

Most languages in China belong to the Sino-Tibetan languages family, spoken by 29 ethnicities. There are also several major linguistic groups within the Chinese language itself. The most spoken varieties are Mandarin (spoken by over 70% of the population), Wu, Yue (Cantonese), Min, Xiang, Gan, and Hakka. Non-Sinitic languages spoken widely by ethnic minorities include Zhuang (Thai), Mongolian, Tibetan, Uyghur (Turkic), Hmong and Korean.

Classical Chinese was the written standard in China for thousands of years, and allowed for written communication between speakers of various unintelligible languages and dialects in China. Written vernacular Chinese, or baihua, is the written standard based on the Mandarin dialect and first popularized in Ming Dynasty novels. It was adopted with significant modifications during the early 20th century as the national standard. Classical Chinese is still part of the high school curriculum and is thus intelligible to some degree to many Chinese.

Religion

bronze script character for tian (天), "Sky" or "Heaven."]] The "official" orthodox faith system held by most dynasties of China since at least the Shang Dynasty (1766 BC) until the overthrow of the last dynasty (1911 AD) centered on the worship of Shangdi ("Supreme God") or "Heaven" as an omnipotent force. This faith system pre-dated the development of Confucianism and Taoism and the introduction of Buddhism, Islam and Christianity.

It has features of monotheism in that Heaven is seen as an omnipotent entity, endowed with personality but no corporeal form. From the writings of Confucius, we find that Confucius himself believed that Heaven cannot be deceived, Heaven guides people's lives and maintains a personal relationship with them, and that Heaven gives tasks for people to fulfill to teach them righteousness (yi, 義). They became influential in government circles, including Zheng He, Lan Yu and Yeheidie'erding, who designed the Yuan Dynasty's capital, Khanbaliq. Nanjing became an important center of Islamic study. The Qing Dynasty waged war and genocide against Muslims in the Dungan revolt and Panthay Rebellion.

Judaism in China dates to as early as the 7th or 8th century CE. In the first half of the 20th century, tens of thousands of Jews from Europe arrived in Shanghai and Hong Kong during those cities' periods of economic expansion, seeking refuge from the Holocaust. Shanghai was notable for its volume of Jewish refugees, as it was the only port in the world to accept them without an entry visa.

Christianity in China has developed since at least the 7th century AD with the introduction of the Assyrian Church of the East. Christianity began to make significant inroads in China after the 16th century through Jesuit and later Protestant missionaries. The Taiping Rebellion was influenced to some degree by Christian teachings, and the Boxer Rebellion was in part a reaction against Christianity in China.

Sports and recreation

racing, a popular traditional Chinese sport.]]

:For sports in the People's Republic of China, see Sport in the People's Republic of China, Sport in Hong Kong, and Sport in Macau. :For sports in the Republic of China, see Sport in Taiwan.

Many historians believe that football originated in China, where a form of the sport may have appeared around 1000 AD. Other popular sports include martial arts, table tennis, badminton, and more recently, golf. Basketball is now popular among young people in urban centers.

There are also many traditional sports. Chinese dragon boat racing occurs during the Duanwu Festival. In Inner Mongolia, Mongolian-style wrestling and horse racing are popular. In Tibet, archery and equestrian sports are part of traditional festivals.

Physical fitness is highly regarded. It is common for the elderly to practice tai chi chuan and qigong in parks. Board games such as Chess, Go (Weiqi), and Xiangqi (Chinese chess) are also common and have organized formal competitions. The capital city of the People's Republic of China, Beijing, hosted the 2008 Summer Olympics, a major international sporting event.

Science and technology

Among the technological accomplishments of ancient China were paper (not papyrus) and papermaking, woodblock printing and movable type printing, the early lodestone and needle compass, gunpowder, toilet paper, early seismological detectors, matches, pound locks, the double-action piston pump, blast furnace and cast iron, the iron plough, the multi-tube seed drill, the suspension bridge, natural gas as fuel, the differential gear for the South Pointing Chariot, the hydraulic-powered armillary sphere, the hydraulic-powered trip hammer, the mechanical chain drive, the mechanical belt drive, the raised-relief map, the propeller, the crossbow, the cannon, the rocket, the multistage rocket, etc.

Chinese astronomers were among the first to record observations of a supernova. The work of the astronomer Shen Kuo (1031–95) alone was most impressive, as he theorized that the sun and moon were spherical, corrected the position of the pole star with his improved sighting tube, discovered the concept of true north, wrote of planetary motions such as retrogradation, and compared the orbital paths of the planets to points on the shape of a rotating willow leaf. With evidence for them, he also postulated geological theories for the processes of land formation in geomorphology and climate change in paleoclimatology.

Other important astronomers included Gan De, Shi Shen, Zhang Heng, Yi Xing, Zhang Sixun, Su Song and Guo Shoujing. Chinese mathematics evolved independently of Greek mathematics and is therefore of great interest in the history of mathematics. The Chinese were also keen on documenting all of their technological achievements, such as in the Tiangong Kaiwu encyclopedia written by Song Yingxing (1587–1666).

China's science and technology had fallen behind that of Europe by the 17th century. Political, social and cultural reasons have been given for this, although recent historians focus more on economic causes, such as the high level equilibrium trap. Since the PRC's market reforms, China has become better connected to the global economy and is placing greater emphasis on science and technology.

See also

Index of China-related articles

Outline of China

Sinosphere

Notes

References

External links

China.org.cn China news, weather, business, travel, language courses, archives

Forecasts for Chinese Development to 2060 by Issue

China from UCB Libraries GovPubs

China information from the U.S. Department of State

U.S. Department of Commerce, Office of China Economic Area

IBTimes HK Topics - China

Category:Ancient history Category:Ancient peoples Category:Civilizations Category:Cultural regions Category:Divided regions Category:East Asia