To allow the force of expanding gases from the gunpowder to act for a longer time
450-900 is the answer I think
Sputnik, 1957. On October 4, 1957, the Soviet Union launched the earth's first artificial satellite, Sputnik-1. As a result, the launch of Sputnik served to intensify the arms race and raise Cold War tensions. During the 1950s, both the United States and the Soviet Union were working to develop new technology.
Answer:
In New York City on September 22, 1776, Nathan Hale, a Connecticut schoolteacher and captain in the Continental Army.
Explanation:
An American Hero , a well known captain at the time for the Continetal Army Captain Nathan Hale of the 19th Regiment of the Continental Army and was one of the first known American spies of the Revolutionary War. In September 1776, he was captured while gathering intelligence behind enemy lines before the Battle of Harlem Heights. He is the reason the brittish lost the Harlem Battle and didnt invade further.
Answer:
Cuneiform (Ancient Mesopotamia)
Explanation:
Cuneiform was <u>used mainly in Mesopotamia</u> but also in <u>parts of Persia</u> as well. These symbols were writen using a sharp reed by making imprints on wet clay tablets. This writing system was <u>invented by Ancient Sumerians</u>. Cuneiform was used from around <u>3500-3000 BCE.</u>
