Sayyid Hussein bin Ali, GCB (1854 – June 4, 1931) (حسین بن علی; Ḥusayn bin ‘Alī), was the Sharif of Mecca, and Emir of Mecca, from 1908 until 1917, when he proclaimed himself King of the Hejaz, which received international recognition. He initiated the Arab Revolt in 1916 against the increasingly nationalistic Ottoman Empire during the course of the First World War. In 1924, when the Ottoman Caliphate was abolished, he further proclaimed himself Caliph of all Muslims. He ruled Hejaz until 1924, when, defeated by Abdul Aziz al Saud, he abdicated the kingdom and other secular titles to his eldest son Ali.

Hussein bin Ali was born in 1853 in Istanbul as the eldest son of Sharif Ali ibn Muhammad and his wife, Salha Bani-Shahar. He was the last of the Hashemite rulers over the Hejaz to be appointed by the Ottoman Sultan. The Hashemites and their followers believe that they descended from the Islamic prophet Muhammad and therefore are highly respected amongst such Muslims.

Sharīf (Arabic: شريف‎ šarīf) or Chérif is a traditional Arab tribal title given to those who serve as the protector of the tribe and all tribal assets, such as property, wells, and land. In origin, the word is an adjective meaning "noble", "highborn". The feminine singular is sharifa(h) (Arabic: شريفة‎ šarīfah). The masculine plural is Ashraf (Arabic: اشراف‎ ʾašrāf).

Primarily Sunnis in the Arab world reserve the term sharif for descendants of Hasan ibn Ali, while sayyid is used for descendants of Husayn ibn Ali. Both Hasan and Husayn are grandchildren of Prophet Muhammad, through the marriage of his cousin Ali and his daughter Fatima. However ever since the post-Hashemite era began, the term sayyid has been used to denote descendants from both Hasan and Husayn. Arab Shiites use the terms sayyid and habib to denote descendants from both Hasan and Husayn; see also ashraf.

From 1201 until the Hejaz was conquered by Ibn Saud in 1925, this family held the office of the Sharīf of Mecca, often also carrying the title and office of King of Hejaz. Descendants now rule the Hashemite Kingdom of Jordan, the name being taken from the Banu Hashim, the sub-tribe of Banu Quraish, to which Prophet Muhammad belonged.

Since the end of the age of sail a ship has been any large buoyant marine vessel. Ships are generally distinguished from boats based on size and cargo or passenger capacity. Ships are used on lakes, seas, and rivers for a variety of activities, such as the transport of people or goods, fishing, entertainment, public safety, and warfare. Historically, a "ship" was a vessel with sails rigged in a specific manner.

Ships and boats have developed alongside mankind. In armed conflict and in daily life they have become an integral part of modern commercial and military systems. Fishing boats are used by millions of fishermen throughout the world. Military forces operate vessels for combat and to transport and support forces ashore. Commercial vessels, nearly 35,000 in number, carried 7.4 billion tons of cargo in 2007.

Ships were key in history's great explorations and scientific and technological development. Navigators such as Zheng He spread such inventions as the compass and gunpowder. Ships have been used for such purposes as colonization and the slave trade, and have served scientific, cultural, and humanitarian needs. After the 16th century, new crops that had come from and to the Americas via the European seafarers significantly contributed to the world's population growth. Maritime transport has shaped the world's economy into today's energy-intensive pattern.

The domestic dog (Canis lupus familiaris), is a subspecies of the gray wolf (Canis lupus), a member of the Canidae family of the mammilian order Carnivora. The term "domestic dog" is generally used for both domesticated and feral varieties. The dog may have been the first animal to be domesticated, and has been the most widely kept working, hunting, and companion animal in human history. The word "dog" may also mean the male of a canine species, as opposed to the word "bitch" for the female of the species.

The present lineage of dogs was domesticated from gray wolves about 15,000 years ago. Remains of domesticated dogs have been found in Siberia and Belgium from about 33,000 years ago. None of these early domestication lineages seem to have survived the Last Glacial Maximum. Although mDNA suggest a split between dogs and wolves around 100,000 years ago no specimens predate 33,000 years ago that are clearly morphologically domesticated dog.

Dogs' value to early human hunter-gatherers led to them quickly becoming ubiquitous across world cultures. Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and military, companionship, and, more recently, aiding handicapped individuals. This impact on human society has given them the nickname "Man's Best Friend" in the Western world. In some cultures, dogs are also source of meat. In 2001, there were estimated to be 400 million dogs in the world.

Art is a term that describes a diverse range of human activities and the products of those activities, but is most often understood to refer to painting, film, photography, sculpture, and other visual media. Music, theatre, dance, literature, and interactive media are included in a broader definition of art or the arts. Until the 17th century, art referred to any skill or mastery and was not differentiated from crafts or sciences, but in modern usage the fine arts are distinguished from acquired skills in general.

Many definitions of art have been proposed by philosophers and others who have characterized art in terms of mimesis, expression, communication of emotion, or other values. During the Romantic period, art came to be seen as "a special faculty of the human mind to be classified with religion and science".

The nature of art, and related concepts such as creativity and interpretation, are explored in a branch of philosophy known as aesthetics.

The Encyclopædia Britannica Online defines art as "the use of skill and imagination in the creation of aesthetic objects, environments, or experiences that can be shared with others". By this definition of the word, artistic works have existed for almost as long as humankind: from early pre-historic art to contemporary art; however, some theories restrict the concept to modern Western societies. The first and broadest sense of art is the one that has remained closest to the older Latin meaning, which roughly translates to "skill" or "craft." A few examples where this meaning proves very broad include artifact, artificial, artifice, medical arts, and military arts. However, there are many other colloquial uses of the word, all with some relation to its etymology.

The National Register of Historic Places (NRHP) is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation. A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred preserving the property.

The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one million properties on the National Register, 80,000 are listed individually. The remainder are contributing resources within historic districts. Each year approximately 30,000 properties are added to the National Register as part of districts or by individual listings.

For most of its history the National Register has been administered by the National Park Service (NPS), it is an agency within the United States Department of the Interior. Its goals are to help property owners and interest groups, such as the National Trust for Historic Preservation, coordinate, identify, and protect historic sites in the United States. While National Register listings are mostly symbolic, their recognition of significance provides some financial incentive to owners of listed properties. Protection of the property is not guaranteed. During the nomination process, the property is evaluated in terms of the four criteria for inclusion on the National Register of Historic Places. The application of those criteria has been the subject of criticism by academics of history and preservation, as well as the public and politicians.