April 19, 1775 - September 3, 1783
(8years, 4months and 15 days)
Inventor and entrepreneur Sarah E. Goode was the first African-American woman to be granted a patent by the U.S. Patent and Trademark Office, for her invention of a folding cabinet bed in 1885. She died in 1905. ((Her invention of folding a cabinet bed))
Early machine guns, such as those in 1914, could fire 400-600 rounds per minute. After the war, the figure was more than doubled. The machine guns in could fire more than 1000 rounds per minute. The rounds were fed via a fabric belt or a metal strip. I hope this helps.
A way to end conflicts between nations is one of the functions of the UN
It is, but how many marks is this question boo xo
