For some guns might be a sensational invention while for others it might be a dreadful invention.
Weapons have been the primary tools since ancient age. But, it is an undeniable fact that the Guns have revolutionized the world.
The earliest usage of a firearm might have been in China during the 13th century CE. In earlier days, guns were fired by holding a burning wick to a "touch hole" in the barrel igniting the powder inside.
The first machine gun is the matchlock, which dates to 1400s. By the 12th century, the technology started spreading to Asia, followed by Europe. The problem of loading and reliability was solved by the invention of a hand-driven machine gun called Gatling gun. It was invented by Richard J. Gatling during the American Civil War. As the tech continued to evolve, each following model became more deadly.