The wheel is often called humanity’s greatest invention—and for good reason. From its humble beginnings in ancient Mesopotamia to its vital role in modern transportation, the wheel has shaped every stage of civilization. But the story is more complex than it seems. The first wheels weren’t even used for transport, and their design evolved over thousands of years before transforming into the foundation of modern technology. In this episode, we explore the fascinating history of the wheel—how it was invented, why it spread across cultures, and how it changed the world forever.