Achievements of the River Valleys
The achievements of the river valleys are very important because things they used back then are the same things we use now. For example, the 365 day calendar was achieved by Egypt. Also we use geometry made by the Egyptians. Our farming and bartering achievements go straight to Mesopotamia. They invented the wheel and the plow. The Huang He gave us a system of roads. The Indus Valley gave us astronomy and planned cities. We still use those achievements today. Lastly, all of the river valleys gave us epics and sculpting. It's so cool how we use these achievements today,