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The Mali Empire (1240-1645) of West Africa was founded by Sundiata Keita (r. 1230-1255) following his victory over the kingdom of Sosso (c. 1180-1235). Sundiata's centralised government, diplomacy and well-trained army permitted a massive...

The Mauryan Empire (322 BCE - 185 BCE) supplanted the earlier Magadha Kingdom to assume power over large tracts of eastern and northern India. At its height, the empire stretched over parts of modern Iran and almost the entire Indian subcontinent...

Guilds of merchants and craft workers were formed in medieval Europe so that their members could benefit from mutual aid. Guilds ensured production standards were maintained and that competition was reduced. In addition, by members acting...

The Antikythera mechanism (also known as the Antikythera Device), dated to the late 2nd century/early 1st century BCE (roughly 205-60 BCE) is understood as the world's first analog computer, created to accurately calculate the position of...

Hercules (Herakles) was a hero of Greek mythology famous for his great strength and endurance. Celebrated as an extraordinary mortal, his success in seemingly impossible labours won him an immortal place amongst the gods. As the greatest...

The steam engine developed by the Scotsman James Watt (1736-1819) from 1769 was much more efficient in terms of power and fuel consumption than earlier models, and it significantly increased the possible uses for this key invention of the...

Vasco da Gama (c. 1469-1524) was a Portuguese navigator who, in 1497-9, sailed around the Cape of Good Hope in southern Africa and arrived at Calicut (now Kozhikode) on the south-west coast of India. This was the first direct voyage from...

Art, along with language, is perhaps the best way to see the connections between the ancient peoples we label as Celts who lived in Iron Age Europe. There were great variations across time and space but common features of ancient Celtic art...

Medieval serfs (aka villeins) were unfree labourers who worked the land of a landowner (or tenant) in return for physical and legal protection and the right to work a separate piece of land for their own basic needs. Serfs made up 75% of...

Roman coins were first produced in the late 4th century BCE in Italy and continued to be minted for another eight centuries across the empire. Denominations and values more or less constantly changed but certain types such as the sestertii...