The Nile River was a major life source for the ancient Egyptians.
Oklahoma became the 46th state in 1907, following several acts that incorporated more and more Indian tribal land into U.S. territory. After its inclusion in the union, Oklahoma became a center for oil production, with much of the state's early growth coming from that industry.
After civil war the slaves that were released needed jobs so they worked as share copers by keeping up the fields for the owner and they would either be paid or get a certain amount of the crop.