Building on this question...
- How much of Genesis 2 actually occurred?
And how do historians/biblical scholars know that it occurred?
closed as not constructive by Bruce Alderman, David Stratton♦, Flimzy, Affable Geek, Caleb♦ Feb 29 '12 at 12:54
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There is simply no archeological evidence nor any biblical information. Any such evidence as may have existed would have been guarded by the angel in 3:24, until such time as the whole thing was destroyed in the flood of Genesis 6-9.
In any event, archeology is also notoriously unable to nail down the duration of short events.
As such, you are only left with speculation and opinion, neither of which is on topic for this site.