Major developments: Bayonets spread across Eurasia. A paper cartridge is introduced by Gustavus Adolphus. Rifles are used for war by Denmark. A ship of the line carrying 60 to 120 cannons appears in Europe. Samuel Pepys' diary mentions a machine gun like pistol. The "true" flintlock replaces the snaphance flintlock in Europe by the end of the 17th century. Both China and Japan reject the flintlock and the Mughal Empire only uses it in limited quantities. Gunpowder is used for mining in Europe.