The Earth is, in fact, round' - Medieval manuscripts blog
Who proved that the Earth is round, and what was the method opted by them for the proof? - Quora
Who first Knew the Earth was Round?
This Month in Physics History
Flat Earth 'theory' — why do some people think the Earth is flat? | Live Science
Who Discovered The Earth is Round? | ScienceBlogs
Why do some people believe the Earth is flat? | Pursuit by The University of Melbourne
Is Earth flat? No, but you won't convince flat earthers with science — Quartz
Who Discovered Earth Was Round - Inventions and Discoveries
Round Earth Clues: How Science Proves that our Home is a Globe
Who first Knew the Earth was Round?
Who Discovered The Earth is Round? | by Ethan Siegel | Starts With A Bang! | Medium
Eratosthenes - Wikipedia
MYTH: Columbus set out to prove the earth was round. - CSMonitor.com
Strange but True: Earth Is Not Round - Scientific American
The earth is round! - The Journal of Thoracic and Cardiovascular Surgery
The Round Earth and Christopher Columbus
Christopher Columbus Never Set Out to Prove the Earth was Round - HISTORY
Flat Earth - Wikipedia
Planet Earth facts and information
Who Discovered Earth Was Round - Inventions and Discoveries
Even a Kid Can Prove the Earth Is Round: Here's How | Space
5 Questions About Believing In A Flat Earth That You Were Afraid To Ask | Colorado Public Radio
Spherical Earth - Wikipedia
