He was the first African American to participate in Track the olympics. Also he was mostly famous for competing in the german olympics when hitler was in power.He was born on September 12, 1913. He died March 31, 1980. He was born in Oakville, Alabama.
The farmers in Sumer created levees to hold back the floods from their fields and cut canals to channel river water to the fields. The use of levees and canals is called irrigation, another Sumerian invention