So the plan is to deport Native Americans back to... wait for it... where they came from??

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@petergleick

This policy to one side, where did Native Americans come from, and when ? based on anthropological migration of humans?

@pthane @petergleick

This is what I meant, that is one heck of a migration eh, esp given that now the baring straight only freezes at certain times of the year (citation needed). But still impressive.

@zleap @petergleick
Years since I read about it but I think the theory is that as the last ice age thawed there was a brief period when the region was warm enough to live in but there was still enough ice locked up on Greenland, Antartica etc for the sea level to be significantly lower than today making it possible to walk from Asia to North America. Could be wrong. Anyone know better?

@pthane @petergleick

I think the Baring sea can freeze over midwinter allowing crossing.

With regard to the 'last ice age' according to my local football team head coach who has a degree in Geology, we are still in ice age due to having polar ice caps.

It would be interesting to have that map overlaid with a topological map (if that is the right term) and other information to reflect what the earth looked like back then. Of course it probably took them a long long time to even migrate, given going from I guess sub saharan Africa to modern Day Canada / USA on foot would take a long time.

@fzimper @zleap @petergleick The timelines change a bit, as new evidence comes to light, but I think the *routes* are generally agreed on. North America was populated between 10 000 and 20 000 years ago by folks coming across a land bridge from Asia. And, go back far enough, we originate in Africa.

The map below is from

geo.libretexts.org/Bookshelves

@MichaelPorter

"And, go back far enough, we originate in Africa."

That's what I was referring to

@zleap @petergleick

@MichaelPorter @fzimper @petergleick

10-20,000 years is I guess fairly recent given how old the earth is and how long life has been on Earth for.

@zleap @fzimper @petergleick Yup, just a blink of an eye in the big scheme of things.

But to get back to the point, evidence indicates that Native Americans were on the continent many thousands of years before Europeans arrived.

@MichaelPorter @fzimper @petergleick

Well hopefully what he said about sending people back to where they came from, in this context is just bluster and his usual nonsense.

However if he tries it, it will make the USA look so stupid as a country it will be very difficult to restore its reputation.

MAGA is should be MALS Make America Look Stupid.

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