1835 - The first Colt revolver. Samuel Colt developed the first ... 1869 - Center-fire cartridge introduced. 1870-1871- The Franco-German War. Breach-loaded guns are dominant.

The Colt New Service was produced from 1898 to 1941 and was the first large-frame revolver made into a snub-nosed version, adopted by none other than F. Scott Fitzgerald himself.