Construction
Crossbows consist of a prod mounted onto a stock. Historically, the prod and stock were made out of oak or maple. The stock is constructed with a mechanism to wind and shoot bolts, which are often referred to as quarrels. The bolt or quarrel rests along the shelf, a flat section of wood with a groove. The strings to launch the bolt are made from strong, resilient fibers. In the 1400s, a trigger mechanism was implemented into the crossbow design.
Bolts and Accessories
Bolts were shorter in length than arrows, but often several times heavier to achieve optimal range in relation to the weight and size of the crossbow. Bolts often had three fletches -- aerodynamic vanes used to stabilize flight. Bolts were fitted with a variety of different heads. Modern crossbows are actually designed to use arrows, which are better suited for the purpose of game hunting. Medieval crossbows used crude iron sights as an accessory. They were the predecessors of modern laser sights.
Early History
The ancient crossbow dates back to 600 B.C. in Ancient China. Remains of bronze bolts and repeating crossbows have been discovered in tombs throughout China. Crossbows are thought to have been used widely in ancient China. Sun Tzu's "The Art of War," features a chapter describing crossbows. Greece developed its own variation of the crossbow around the same time, but it was cruder and less effective than the Chinese version. The Roman Empire used crossbows and a variety of similar mechanical weapons.
Medieval History
The crossbow was introduced to England by William the Conquerer in 1066. Crossbows could penetrate armor easily and were usable by untrained soldiers. As a result, the crossbow was considered to be a peasant's weapon and an abomination. At one point, it was banned by Pope Urban II. Additional ban attempts were conducted by Pope Innocent II and the Magna Carta. Despite the ban, crossbows were widely used in medieval armies. Crossbows also gained popularity as sport hunting weapons.They were especially favored by Queen Elizabeth and King James.