Al-Jazari's Siege Machines

Type Object Region Mesopotamia Time c. 1191–1200

Hydraulic and mechanically driven siege and defense devices designed by al-Jazari (1136–1206) at the Artuqid court in Mesopotamia in the late 12th ce…

Timeline

c. 1180–1195Diyarbakir · TurkeyFrom the 1180s al-Jazari served as chief engineer at the Artuqid court in Diyarbakir, designing water clocks, automata, and military trebuchets and defensive devices for the rulers, accumulating the mechanical experience later recorded in his book.
c. 1191–1200Mesopotamia (Artuqid domains) · MesopotamiaIn the 1190s al-Jazari refined mechanical designs including large trebuchets, repeating crossbow devices, and mobile siege shield-carts, combining cam, crank, and chain-drive mechanisms, laying the foundation for the military machinery chapters of his 1206 book.

Sources

The Book of Knowledge of Ingenious Mechanical Devices — Ismail al-Jazari (1974)
A History of Engineering in Classical and Medieval Times — Donald R. Hill (1984)