"In Europe, it has been known since the 13th century; until the mid-19th century, it remained the only explosive substance with a brisant effect, and until the end of the 19th century, it was a propellant."
"It is officially believed that firearms appeared in Europe in the 14th century when the development of technology made it possible to use the energy of gunpowder."
Added 2 minutes later
Firearms appeared in the 14th century. Are you saying that in the 14th century, there was no longer a need for armor? Don't try to fool me.
