Okay, well a plow is used for farming. Basically the Sumerian plow is like a modern day tractor. If you have ever heard the term, "to plow the fields", you would know and immediately think of a tractor.
The appropriate answer in A. Building the Berlin Wall. The official purpose of the Berlin Wall was to prevent West Germany from undermining the political ideals from East Germany. The Wall also prevent East Germans from going to the West.
Construction of the wall began in 1961 and was used until it's 'fall' on November 9, 1989. The wall was initially concrete and barbed wire but was fortified over time with various check points to monitor traffic.
It was the Truman Doctrine that established that the United States should give
political, military, and economic support to democratic nations threatened by<span> authoritarian powers</span>. These authoritarian powers were largely communist at the time.
World war 2 ended with unconditional surrender of the Axis powers on May 8 1945 Allie's accepted Germanys surrender. about a week after Adolf Hitler had committed suicide.