Medieval Crossbow

Timeline

1. c. -400–900Mediterranean and East Asia · MediterraneanThe ancient Greek gastraphetes and the Chinese nu trigger mechanism represent early transverse-bow technology, indirectly influencing Europe through the Byzantine and Arab worlds and providing technical reference for Western European crossbow mechanism design.
2. c. 1011–1020Southern France and Northern Italy · FranceIn the early 11th century, Western European city-states and lords' armies began systematically equipping crossbows for city defense and field battle; their short training cycle gave commoner infantry considerable ranged lethality, arousing the feudal knightly class's wariness.
3. c. 1100–1300Western Europe · Western EuropeIn the 12th–13th centuries the crossbow became standard on castle battlements, used with ballistae for sieges and defense, and saw large-scale use in the Second Crusade and the early phase of the Hundred Years' War.
4. c. 1139–1500Europe · EuropeThe Second Lateran Council of 1139 condemned crossbow use against Christians, but actual bans were limited; after the rise of the matchlock in the 15th century, the crossbow gradually withdrew from frontline infantry ranks, remaining only for hunting and local garrison duty.