1862 - The Gatling Gun is invented. 1869 - Center-fire cartridge introduced. 1870-1871- The Franco-German War. Breach-loaded guns are dominant. 1871 - First cartridge revolver. 1873 - Winchester ...

As with many ancient inventions, the origins of the gun are uncertain, however, it's mostly likely they were invented in ...

The first air guns/rifles appear in history during the 1580s ... A pneumatic valve, originally thought to have been invented much later, was employed because air guns/rifles of that time required ...