Keep

A keep (from the Middle English kype) is a type of fortified tower built within castles during the Middle Ages by European nobility. Scholars have debated the scope of the word keep, but usually consider it to refer to large towers in castles that were fortified residences, used as a refuge of last resort should the rest of the castle fall to an adversary. The first keeps were made of timber and formed a key part of the motte-and-bailey castles that emerged in Normandy and Anjou during the 10th century; the design spread to England as a result of the Norman invasion of 1066, and in turn spread into Wales during the second half of the 11th century and into Ireland in the 1170s. The Anglo-Normans and French rulers began to build stone keeps during the 10th and 11th centuries; these included Norman keeps, with a square or rectangular design, and circular shell keeps. Stone keeps carried considerable political as well as military importance and could take up to a decade to build.

Unknown

Unknown or The Unknown may refer to:

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CALM

Calm may The Calm refer to:

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Super Sentai

The Super Sentai Series (スーパー戦隊シリーズ, Sūpā Sentai Shirīzu) is the name given to the long-running Japanese superhero team genre of shows produced by Toei Co., Ltd., Toei Agency and Bandai, and aired by TV Asahi ("Super" refers to their use of mecha, and "sentai" is the Japanese word for "task force" or "fighting squadron"). The shows are of the tokusatsu genre, featuring live action characters and colorful special effects, and are mainly aimed at children. The Super Sentai Series is one of the most prominent tokusatsu productions in Japan, alongside the Ultra Series and the Kamen Rider Series, which it currently airs alongside in the Super Hero Time programming block on Sundays. Outside Japan, the Super Sentai Series is best known as the source material for the Power Rangers franchise.

Series overview

In every Super Sentai Series, the protagonists are a team of people who transform ("henshin") into superheroes and gain superpowers (color-coded uniforms, personal weapons, sidearms and martial arts skills) in order to battle a group of evil beings that threaten to take over the Earth. In every episode, the heroes thwart the enemies plans and defeats an army of enemy soldiers and the "monster of the week", and in one last effort to defeat the heroes, an enlarged version of the monster appears to confront them, only to be defeated again when the heroes call for their "mecha" (huge robotic machines that can combine to form one or more giant robots) to fight it. While each Super Sentai Series is set in its own fictional universe, various TV, video and film specials feature a team-up between one or more teams.

World war

A world war is a war involving many or most of the world's most powerful and populous countries. World wars span multiple countries on multiple continents, with battles fought in multiple theatres.

The term is applied to the two major international conflicts that occurred during the 20th century:

In terms of human technological history, the scale of these wars was enabled by the technological advances of the Second Industrial Revolution and resulting globalization that allowed global power projection and mass production of military hardware, but wars on such a scale have not been repeated due to the onset of the Atomic Age and the resulting danger of mutual assured destruction.

Origins of the term "world war"

The term "World War" was coined speculatively in the early 20th century, some years before the First World War broke out, probably as a literal translation of the German word Weltkrieg. German writer August Wilhelm Otto Niemann had used the word in the title of his anti-British novel Der Weltkrieg: Deutsche Träume ("The World War: German Dreams") as early as 1904, published in English as The coming conquest of England. Also, the term was used as early as 1850 by Karl Marx in The Class Struggles in France, as well as his associate Friedrich Engels.Rasmus B. Anderson in 1889 describes an episode in Teutonic mythology as a world war (Swedish världskrig), justifying this description by a line in an Old Norse epic poem, Völuspá: folcvig fyrst i heimi (the first great war in the world). The Oxford English Dictionary cites the first known usage in the English language to a Scottish newspaper, the People's Journal in 1848: "A war amongst the great powers is now necessarily a world-war."