re: As usual, you have your 'facts' completely wrong....
"Most scholars accepted Ptolemy's claim that the terrestrial landmass (for Europeans of the time, comprising Eurasia and Africa) occupied 180 degrees of the terrestrial sphere, leaving 180 degrees of water.
From Wikipedia: http://en.wikipedia.org/wiki/Christopher_Columbus"
And the good news is they were only about 200 million years from being completely correct.
