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Definition
Galileo Galilei
Galileo Galilei (1564-1642) was an Italian mathematician, physicist, astronomer, and natural philosopher. He created a superior telescope with which he made new observations of the night sky, notably that the surface of the Moon has mountains...
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Definition
Ancient Greek Warfare
In the ancient Greek world, warfare was seen as a necessary evil of the human condition. Whether it be small frontier skirmishes between neighbouring city-states, lengthy city-sieges, civil wars, or large-scale battles between multi-alliance...
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Definition
Electrical Telegraph
The electrical telegraph was invented in 1837 by William Fothergill Cook (1806-1879) and Charles Wheatstone (1802-1875) in England with parallel innovations being made by Samuel Morse (1791-1872) in the United States. The telegraph, once...
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Definition
Xerxes I
Xerxes I (l. 519-465, r. 486-465 BCE), also known as Xerxes the Great, was the king of the Persian Achaemenid Empire. His official title was Shahanshah which, though usually translated as `emperor', actually means `king of kings'. He is identified...
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Definition
Hoplite
A hoplite (from ta hopla meaning tool or equipment) was the most common type of heavily armed foot-soldier in ancient Greece from the 7th to 4th centuries BCE, and most ordinary citizens of Greek city-states with sufficient means were expected...
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Definition
Roman Philosophy
Roman philosophy played a significant role in the growth and development of Western thought. While not involved directly in the development of original philosophical thought, Rome made significant contributions in two ways: by conveying Greek...
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Definition
Ancient Persian Warfare
The ancient Persian military evolved from the earlier armed forces of the Medes which, in turn, developed from the warrior class of the indigenous people of the Iranian Plateau, the Aryan migrants (including the Persians) who later settled...
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Definition
Hel
Hel is the queen of the afterlife realm of Hel in Norse mythology. She is the daughter of the god Loki and giantess Angrboda and sister of Fenrir the wolf and Jörmungandr the World Serpent. Although often referenced as a goddess, Hel is more...
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Definition
State of Nature
The state of nature is an idea which became especially popular with certain philosophers during the Enlightenment, notably Thomas Hobbes (1588-1679), John Locke (1632-1704), and Jean-Jacques Rousseau (1712-1778). It refers to a state of existence...
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Definition
The Conquest of New Spain
The Conquest of New Spain by Bernal Díaz del Castillo (1492 to c. 1580) is an account written in 1568 of the early Spanish colonization of Mesoamerica, specifically the conquest of the Aztec civilization in Mexico from 1519 to 1521 when Díaz...