Definitions

The steam hammer was developed in 1839 by the Scotsman James Nasmyth (also spelt Naysmyth, 1808-1890). Coming in a wide range of dimensions, the steam-powered machine was used to forge and shape very large pieces of metal for industrial use...

Ancient Mesopotamian warfare progressed from companies of a city's militia in Sumer to the professional standing armies of Akkad, Babylon, Assyria, and Persia and from conflicts over land or water rights to wars of conquest and political...

Childeric I (r. c. 458-481) was a late antiquity king of the Salian Franks during the period of the fall of the Western Roman Empire. Childeric's reign solidified the Salians as a dominant Frankish tribe and helped pave the way for the unification...

Khosrow II (aka Kosrau II, r. 590-628) was the last powerful shahanshah (king of kings) of the Sassanian Empire. Grandson of Kosrau I (r. 531-579) and near-conqueror of the Byzantine Empire in the Byzantine-Sassanian War of 602-628, Khosrow...

Ancient Mesopotamian government was based on the understanding that human beings were created to help and serve the gods. The high priest, king, assembly of elders, governors, and any other officials were recognized as stewards chosen by...

The Rocket was a pioneering steam-powered locomotive invented in 1829 by the British engineer Robert Stephenson (1803-1859). For a cash prize, extensive competition trials were held to find the best locomotive in the Rainhill Trials. Rocket...

Heraclius (Herakleios) was emperor of the Byzantine Empire from 610 to 641 CE. He crushed the Persian empire and returned the looted True Cross to Jerusalem, but the second half of his reign was beset by intrigues and ecclesiastical controversies...

Themis is the personification and goddess of divine law, will, and justice in Greek mythology. She was held in high esteem by the Olympians, often sitting by Zeus' throne and giving him wise counsel. Themis held the place of Oracle at Delphi...

Louis Philippe II, Duke of Orléans (l. 1747-1793) was a French noble of royal blood. He was the head of the House of Orléans, a cadet branch of the royal Bourbon dynasty, and was a cousin of King Louis XVI of France (r. 1774-1792). Despite...

The 1851 Great Exhibition was held in the purpose-built Crystal Palace in Hyde Park, London, to showcase the latest developments in engineering, science, and the arts, as well as objects of cultural significance from Britain and abroad. Running...