Most people would say John Browning. He invented and devoloped what is now known as the 1911 in the late 1800s. There were acutally a few semi-automatic pistols during that same time, but the 1911 is the most similar to other modern guns.
he invented the first handgun
It wasn't really "invented" per se, but rather designed. And it was by Beretta.
We do not know the exact date, or place. "Hand cannons"- a crude form of a handgun, were first used in battle about 1260 AD.
The M9 is a handgun that is widely used in the world.
It's commonly referred to as any sort of handgun.
Very generally speaking, handguns were invented in order to have an easily portable means of defense against people with contact weapons (such as swords).
The Computer Modern was invented 1958 USA
1832
Football was invented by the English.
modern firearm (rifle,shotgun,handgun), Primitive (archery,muzzle loader) Trapping
How the Scots Invented the Modern World has 392 pages.
How the Scots Invented the Modern World was created in 2001-11.