[["I believe that it was Pythagoras who first proposed that the Earth was round sometime around 500 B.C.", 165.0], ["The first person to propose that the Earth was round was Pythagoras, some time around 500BC. Some time during the next few decades, Anaxagoras gave proof, in the form of the Earth's shadow on the moon during a lunar eclipse.", 60.0]]
when did they discover the earth was round
history,earth