The arbalest, invented in the 12th century, was a kind of super crossbow. It was made of steel, so it could endure much higher tension than ordinary bows and produce greater force. An arbalest was accurate up to 300 meters (984 feet), relatively quick to reload, and easy to operate. Its bolts could pierce armor. The arbalest, overnight, made knights obsolete. It was all very well and good if you could wield a sword better than the next knight, but a man who’s been using an arbalest for two months can shoot both of you within a minute. Through your armor.