[MaxMax]

I thought ancient humans were so much smarter than us that we couldn't begin to comprehend.
And stonehenge was one of those builds that is far beyond our primitive intellect.
And muslims invented math.

[Texas Fossil]

Anasazi (the ancient ones) Calendar

http://theabysmal.wordpress.com/2007/03/30/anasazi-calendar/

Elsewhere there are photo’s of this device that show how old civilizations predicted the seasons accurately with crude looking instruments.