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So much of what we say about Columbus is either wholly untrue or greatly exaggerated. Here are a few of the top offenders. 1. Columbus set out to prove the world was round. If he did, he was about 2,000 years too late. Ancient Greek mathematicians had already proven that the Earth was round, not flat. Pythagoras in the sixth century B.C.E. was one of the originators of the idea.
Here are 8 ways we know the Earth is round, and some you can prove yourself! While flat-earthers will contend that there is no such thing as gravity, this force unites the entire universe. Itâs everything from what makes the numbers jump on a bathroom scale to the reason why planets and stars form.