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Definition
Homo Sapiens
Homo sapiens ('wise man'), or modern humans, are the only species of human still around today. Despite having invented countless ways of labelling the world around us, we have so far done a surprisingly poor job at defining ourselves. Originating...
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Galileo's Design for a Pendulum Clock
A design for a pendulum clock made by Galileo Galilei (1564-1642) in the last year of his life. Galileo never made a working model of the clock (although his son did in 1649). Illustration by Vincenzo Viviani. (Science Museum, London)
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Detail, Tompion Clock Face
A detail of a table clock made by Thomas Tompion (1639-1713). Perhaps made for Anne, Queen of Great Britain (r. 1702-1714) around 1708. (Science Museum, London)
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Eastgate Clock Chester
The Eastgate Clock, Chester, Cheshire, England. Stands on the site of the original entrance to the Roman fortress of Deva Victrix. Installed in 1899 CE.
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Ten Great Stupas from Around the World
A stupa is a reliquary containing the remains (relics) of an individual associated with great spiritual power and insight, most often (since the 3rd century BCE) with the Buddha (l. c. 563 - c. 483 BCE). The form, a hemisphere topped by a...
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Rock Art History of Madhya Pradesh: Adamgarh & Nagori
Rock art, that is paintings and carvings on natural rock formations, is one of the earliest forms of creative expression and a universal phenomenon among prehistoric societies. An instrument of communication rather than simply art, it is...
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The Armour of an English Medieval Knight
English medieval knights wore metal armour of iron or steel to protect themselves from archers and the long swords of opponents. From the 9th century CE, chain mail suits gave protection and freedom of movement until solid plate armour became...
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Black Rock with Family
Sioux: Black Rock with family, painting by George Catlin, 1854.
Ethnological Museum, Berlin.
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Mosque of the Dome of the Rock
Mosque of the Dome of the Rock (Qubbat al-Sakhra) located on the Temple Mount in Jerusalem. It was erected by the Muslim caliph Abd el-Malik in 688-691 CE but Suleiman the Magnificent (1520-1566 CE) was responsible for the mosque’s renovation...
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Dome of the Rock
Dome of the Rock in Jerusalem, originally constructed in 691-692 CE in the reign of Caliph Abd al-Malik.