WORLD CIVILIZATION

Detailed explanation-1: -The wheel was invented in the 4th millennium BC in Lower Mesopotamia(modern-day Iraq), where the Sumerian people inserted rotating axles into solid discs of wood. It was only in 2000 BC that the discs began to be hollowed out to make a lighter wheel. This innovation led to major advances in two main areas.

Detailed explanation-2: -The wheel, plow, and writing (a system that we call cuneiform) are examples of their achievements. 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.

Detailed explanation-3: -The invention of the wheel made transport faster and easier for humans, and also brought about a major change in the way of living of Primitive humans. They could also save a lot of travel time and dedicate that time towards other useful activities.

Detailed explanation-4: -THE WHEEL is often described as the most important invention of all time – it had a fundamental impact on transport and later on agriculture and industry. The wheel-and-axle combination was invented around 4500 BC and was probably first used for a potter’s wheel.