The machine gun was decisive in securing victories for the Allies in WW1, if that's the time period this is focused on.
Are there option choices or not? if not, it’s an opinion. i think one of the most significant inventions was the cotton gin or the telegraph. without the cotton gin clothes would still have to be sewn by hand. and without the telegraph, cell phones would not be as advanced.
When man learned to write, to use metals, and to work with others we say he became "civilized", although the exact parameters of civilization vary in interpretation.
Answer:
it was new every one wanted it
Explanation:
