What scientist have been finding in The deserts of chile and peru and in the jungles of the Yucatan is the most concrete evidence of human/alien interaction ever. Move over Roswell. Carvings and paintings and architecture all over southern and central america experianced an incredible an dramatic change over a very short period now i dont know exactly when this took place but I know it is in the B.C years. For instance tribes in chile and peru went from being hunters and gatherers to skilled architects and engineers at the same basic time that the maya portrayed space men like entities in their temples. This really excited me when i saw this in a book i own because the drawing truly did look like a man with a strange suit on and it appeared that he was at the controlls of a space craft. It just seems odd that all of this would all of a sudden happen I'm convinced that this was our first contact