[BiteYourSelf]

It’s said that it took ten to twelve thousand years to from humans being hunter gathers to walking on the moon.
Modern day humans have been on this planet For at least 250,000 years. That is enough time for at least twenty civilizations to develop.🤔

[GingisK]

Exactly the sort of thing I have been thinking.

[BiteYourSelf]

From is supposed to be for.🤔

[KamperKen]

“Modern day humans have been on this planet For at least 250,000 years. That is enough time for at least twenty civilizations to develop.🤔
“

Then there’s the Klerksdorp spheres that appear to be artificial and were found in a rock stratum estimated to be 3 billion years old.