Copernicus did not discover the roundness of the earth. The ancient greeks knew about it and actually calculated the diameter of the globe (pretty close, too!).

Ptolemy, an Egyptian, wrote about the earth being round in his Almagest, which was the manual of astronomy throughout the middle ages. Granted he put the earth in the middle, but he did know the earth was round.

This notion that Columbus proved a new idea about the shape of the earth is hogwash. Perhaps the uneducated felt the earth was round; the educated (granted, a small minority of the population) knew better and always had.

Alex
O..O
=o=