5. because they believe Nelson Mandela
As part of the Truman Doctrine, Harry S. Truman asked for $400 million in military and economic assistance for Greece and Turkey. This occurred in 1947 when the U.S. feared greater Soviet and communist influence in these two countries which were facing grave political and economic crises.
It affected their social lives, and there was very little trade between the two regions (the only ones around.) They also needed many people. They developed irrigation and drainage systems which caused many people to work.
Scribes were extremely important in Sumerian society since they were needed to transcribe everything that was written, because this was before the time of the printing press (which made duplication of such documents are easier).