A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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the abstract study of topics encompassing quantity, structure, space, change, and other properties. It is a prerequisite for theoretical contributions in many other sciences and discipl…
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a blade weapon used primarily for cutting or thrusting.
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The Early Medieval Period of European history lasted from the 5th century to the 10th century.
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Second largest country in the world, located in North America, having boundaries with the United States. The political system is parliamentary democratic monarchy, in personal union with the United Ki…
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generally considered to start at the Renaissance and discovery of the New World (circa 1500) and end around the Age of Revolutions (circa 1800). It is the first part of the …
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energy taken from splitting nucleus of an atom of some chemical elements. This can be used in both peaceful or military goals.
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Religion- or law-enforced union between a man and a woman in history.
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for all methods to measure time. For example, questions about the hourglass, the sundial, and atomic clocks all fit into "Time-keeping"
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For questions about historical practices or events related to non-human animals, including their use by humans, breeding, domestication, hunting, or consumption.
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Refering to the period of 1960 A.D to 1969 A.D in the Gregorian calendar.
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Alexander III of Macedon (356 BC - 323 BC) was a king of the ancient Greek state of Macedon. Commonly known as Alexander the Great, he lead a Greek expedition to Asia and succeeded in conquering the P…
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Questions about the German empire from 18 January 1871, to 1918.
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Internal strife or conflict within a single country, typically of a military nature.
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For questions about the history of music, including its evolution, major events, famous composers and musicians, and growth as an industry. Questions about music theory or other non-historical aspects…
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The northern most countries of Africa that are differentiated from the rest of Africa which lies south of the Sahara desert (those southern countries are also known as sub-Saharan). The UN classifies…
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A special kind of clothing to identify people as belonging to a specific group. Possibly military, police, or other govermental units.
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Common name of two wars in Vietnam beginning in 1955 as independence revolt in French Indochina, then after partition of the country between South Vietnam and her allies (mostly United States) and Nor…
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Questions about China after the fall of the Han Dynasty (A.D. 220) and prior to the early modern period.
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Compulsory payment to the state by all or selected citizens, enforced by law, intended to fund common needs.
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A small country in the west of [tag:europe] next to [tag:spain].
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Linguistic science describing origins of particular words.
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For questions related to new lands discoveries made by Europeans in 16th and 17th centuries.
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Topics relating to the ancient Mediterranean city of Carthage, its culture and history, or the territories it controlled.