text: Major developments: Flintlocks completely displace matchlock firearms in Europe both on land and at sea. Sir William Congreve, 1st Baronet discovers "cylinder powder", gunpowder produced using charcoal in iron cylinders, which is twice as powerful as traditional gunpowder and less likely to spoil. He also invents block trail carriages, the most advanced artillery transport of the time. James Puckle invents a breechloader flintlock capable of firing 63 shots in seven minutes. The Kingdom of Mysore deploys iron cased rockets known as Mysorean rockets.