"An early Maxim gun in operation with the Royal Navy. It was adopted by the British Army
in 1889, and first used by Britain`s colonial forces in the Matabele war in 1893-1894.
In one engagement, 50 soldiers fought off 5,000 warriors with just four Maxim guns." Wikipedia.
It's awesome firepower (and that of other machine guns) helped turn
W.W. I into a slaughter like mankind had never imagined before.