Sorry folks accidental hit the wrong button.

1 Modern humans evolved about 150,000 years ago and started moving out of Africa about 100,000 years ago. There were modern people in Australia at least 60,000 years ago, western Europe 40,000, North America at least 13,000.
I've read about some genetic evidence that humans reached North America Earlier than this from Western Europe along the Ice edge making a living much as the Inuit do today. The similarity of Clovis points to tools of the Solutrean tradition of Western Europe also support this.

2 Pyramids and Orion evidence has recently come to light about the orientation of these Pyramids, also accurate dates based on there stellar alignment to North.
They were built not surprisingly one after another and the reason the last one is not on the same line is that the geological conditions are not suitable there and a different site had to be chosen.

3 Egyptians reached South America by boat and gave rise to the native Pyramid tradition. One slight problem with this hypothesis is that Egyptians stopped building Pyramids at least 2000 years before Native Americans started building theirs.

TTFN
PP