If I am going to discuss the M1911, then I must introduce the genius of its design and several other types of firearms – pistols, shotguns, rifles, and machine guns.
John Moses Browning, January 23rd 1855 to November 26th 1926 was born in Ogden, Utah and was an American firearms designer who developed military and civilian firearms, cartridges, and gun mechanisms that are still used around the world. When it comes to automatic and semi-automatic firearms, he is still the king with 128 firearm patents credited to his name. He made his firearm at the age of 13 in his father's gun shop, and was awarded his first patent on October 7th 1879 at the age of 24. Browning was a great influence in almost all categories of firearm design, inventing or improving the single-shot, lever-action, and slide-action rifles and shotguns; as well as pistol bolts and shrouds and pistol slides. He developed the first gas-operated machine gun, the Colt-Browning Model 1895. He also designed the M1911 pistol, the Browning Hi Power pistol, the Browning .50 caliber machine gun, the Browning Automatic Rifle, and the Browning Auto-5 that was an original semi-automatic shotgun. Most of these firearms are still produced today with some minor changes and cosmetics and his guns are the most copied in the world. See his full biography at Wikipedia.