

In the 1800s, English writer Samuel Rowbotham published the book Zetetic Astronomy: Earth Not a Globe, which was based on his studies of the planet over a 10-year period. Humanity has known the Earth is round since Greek philosopher Aristotle argued that Earth was a sphere and Eratosthenes (276-195 BC) later accurately calculated the circumference of the planet.

READ MORE: Astrophysicist Neil deGrasse Tyson schools rapper B.o.B over flat Earth tweets The former NBA star later said he was “joking” about his flat Earth comments.

