Answer:
Hunting and gathering caused a more nomadic lifestyle, where they were always moving where their food was, and farming, otherwise known as the Agricultural Revolution, was made so we could advance civilization and our technology. These were made into villages and were later made into city-states like Ur and Uruk.
Explanation:
Polk was in favor of acquiring both Texas and Oregon because he was a firm believer in manifest destiny. ... This belief that it was inevitable that this land would belong to the US prompted the federal government to acquire lands like Texas and Oregon.
The name given to Gorbachev's policy of political openness was called "glasnost." This usually meant a sort of openness or transparency for politics, such as that the press and the public could attend court hearings and that the sentence would be read out in public.
The sinking of the U-boat by the Germans, the U-boat had about 100 Americans in it and they were killed.