Definitions

Hellenistic astrology encompassed various forms of divination in Greece and the Mediterranean, all linked to the observation of astronomical phenomena. Hellenistic astrology was based on the belief that the stars and planets could either...

The SS Great Britain was a steam-powered ship designed by Isambard Kingdom Brunel (1806-1859) which sailed on its maiden voyage from Liverpool to New York in May 1845. It was the largest passenger ship in the world at the time and showed...

Khatam is a decoration technique used exclusively on wooden objects and one of Iran's finest and most delicate crafts consisting of geometrical patterns. Small squares or triangles are laid next to one another in different compositions, colors...

Hebe (meaning "youth" or "bloom of youth") is the goddess and personification of eternal youth in Greek mythology. She is the daughter of Zeus and Hera and the wife of the Greek hero Hercules. Hebe serves as the cupbearer for the gods and...

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...