06/12/2026
The idea that medieval people thought the Earth was flat is a historical myth. Educated scholars of the time knew it was spherical, a fact established in ancient Greece.
This misconception gained popularity in the late 19th century.
Historians like John William Draper and Andrew Dickson White promoted a narrative of constant conflict between religion and science.
They used the flat Earth story to symbolize medieval ignorance supposedly enforced by the Church.
In reality, by the 13th century, standard university textbooks like Johannes de Sacrobosco's "De sphaera mundi" clearly explained the Earth's spherical shape.
Major thinkers like Thomas Aquinas and Roger Bacon accepted this. Medieval art frequently depicted a globular Earth.
The flat Earth tale is not a medieval belief but a 19th-century invention.
It was crafted to create a dramatic story of progress from a 'dark' past to an enlightened, scientific present.