Definitions

Homo rudolfensis is an early human species that lived in East Africa between c. 2.5 and 1.8 million years ago. It is known from a handful of skull, jaw and teeth fragments that remind alternatingly of Homo or of Australopithecus and that...

Cerberus (also spelt Kerberos) is a vicious three-headed dog in Greek mythology, who guards the entrance to the underworld. He allowed the souls of the dead to enter Hades but prevented the living (except for a few exceptions) from entering...

Vulcan or Volcanus was the Roman god of fire and forge, the equivalent of Hephaestus from Greek mythology. The son of Jupiter and Juno, he was the special patron of blacksmiths and artisans. As the god of the forge and the devastating fire...

The Italian campaign of 1796-1797, waged by a young Napoleon Bonaparte, was a decisive campaign in the French Revolutionary Wars (1792-1802). It led to the defeat of Austria, the beginning of French control of northern Italy, and the end...

Chiron (also spelt Cheiron) is a wise centaur (half-man, half-horse) in Greek mythology, who was a friend and tutor to many legendary Greek heroes, including Achilles and Jason. Chiron's parentage differed from the rest of the centaurs, as...

The War of the First Coalition (1792-1797) was a continent-spanning conflict in which a coalition of European powers, including Austria, Prussia, Great Britain, the Dutch Republic, Spain, and several others, sought to contain and defeat Revolutionary...

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...

Mount Sinai (Hebrew: Har Sinay, Arabic: Jabal Musa, "mountain of Moses") is a holy site for the three Abrahamic religions: Judaism, Islam, and Christianity. It has traditionally been located in the center of the Sinai Peninsula, between Africa...

Isambard Kingdom Brunel (1806-1859) was a British engineer and a key figure of the British Industrial Revolution (1760-1840). Brunel masterminded the Great Western Railway from London to Bristol, designed and built innovative giant steamships...

Silenus (also spelt Silenos) is a rustic god of the forest, drunkenness and wine-making in Greek mythology. He is best known as the companion and foster father of the god Dionysos. Silenus is closely associated with the satyrs, sometimes...