See you later Alligator
Today is our last day in Mesopotamia so we went to the major city-state called Sumer. Sumerians invented the wagon wheel, plow, and a writing system called cuneiform. The Sumerians also gave us a twelve month calender based on the cycles of the moon and a number system based on 60. The time schedule is based on the 60 second minute, the 60 minute hour, and the 360 degree circle.
Ready to go back home!