he invented the first handgun
No, the first handguns were single shot pistols. A pistol with a revolving barrel was not invented until a couple of hundred years later.
It wasn't really "invented" per se, but rather designed. And it was by Beretta.
The first auto-loading handgun ever made was the Laumann pistol.
There are different theories about exactly what the first handgun was, but in general, the first handguns appeared in the mid to late 1400s.
Chinese
1450
Very generally speaking, handguns were invented in order to have an easily portable means of defense against people with contact weapons (such as swords).
first you will have to furnish type of handgun. revolver, pistol ??? then the MODEL....
No way to find out.
It depends on your needs. In general, you should buy a handgun that fits your hand properly. Beyond that, buy a gun that meets whatever other requirements you have.
700 yrs ago give or take