Medieval People Believed the Earth Was Flat
Lots of people believe Christopher Columbus was the first person in the history of everything to seriously believe – to the point of foolhardy recklessness! – that the earth was round, as opposed to flat. In fact, the theory of a globe-shaped Earth had been kicking around for many hundreds of years, dating all the way back to the 4th Century B.C.
Although the majority of educated people in 1492 (not just in Europe, but indeed, all over the world) believed the earth was a sphere, Columbus himself, ironically, didn't believe this – he thought the earth was pear-shaped. Go figure.