They almost invented the wheel when they invented the Mayan calendar. It's a wheel, but instead of a hole in the center being used for an axle, they put the hea

They almost invented the wheel when they invented the Mayan calendar. It's a wheel, but instead of a hole in the center being used for an axle, they put the head of one of the winners/loosers of those court bat games. So close but yet so far. See http://crankyphoneguy.files.wordpress.com/2008/10/mayancalanderinsidepicture1.jpg http://crankyphoneguy.files.wordpress.com/2008/10/mayancalan.... That's my theory, anyway.