The Wheel
The foundation of mechanical engineering.
Explore this event on the interactive timeline →Widely considered one of the most important mechanical inventions of all time, the wheel was first used in ancient Mesopotamia. Interestingly, it wasn't originally used for transportation—the first wheels were used as potter's wheels to shape clay.
Verified Facts
- It took humans surprisingly long to invent the wheel—we invented agriculture, woven cloth, and sailboats thousands of years before we invented the wheel.
- The primary difficulty wasn't the wheel itself, but inventing the stationary axle that the wheel could spin around with minimal friction.
- The indigenous peoples of the Americas never used the wheel for transportation or agriculture, likely because they had no large, domesticable draft animals (like oxen or horses) to pull carts.