✗ The myth everyone repeats
During the Middle Ages, most people and scholars believed the Earth was flat.
✓ What is actually true
Educated people in medieval Europe knew the Earth was spherical, a fact inherited from ancient Greek and Roman knowledge. The myth that medieval people believed in a flat Earth was largely invented in the 19th century by Washington Irving and others. Even common people may have doubted flat earth claims, given observable evidence from ships disappearing over the horizon.
Reception
The receipts 2 sources