WORLD CIVILIZATION

Detailed explanation-1: -The Sumerians didn’t invent wheeled vehicles, but they probably developed the first two-wheeled chariot in which a driver drove a team of animals, writes Richard W.

Detailed explanation-2: -Soon after that, the Sumerians discovered that the wheel could be used a different way. They flipped the pottery wheels on their edges, and found out that they could be used for rolling things forward. With this new information, Sumerians, created wheeled carts for farmers, and chariots for the army.