[TheRightGuy]

Now, what are the odds that the Aborigines, the Egyptians, and the Aztecs....would all have the same type bag to be carried by some respected ‘visitor’?

are you perhaps suggesting they were all deposited in place by space aliens?

[pepsionice]

Yep...the canal system down in NW Botswana convinced me. Terrific canals laid out...precise...the size of Arizona. It would all function great from the weather pattern that existed more than 10,000 years ago from the local ‘delta’.