Origins of number one

We watched a video about the origins of number one which is a mystery.

The shapes number 1 tooks in the history were a mark, a scratch on a bone, a notch, a token, a wedge.

3,000,042,659 years ago, it was the primordial soup (the origin of life on earth), but number 1 didn't exist yet.

150,000 years ago, our ancestors made marks on a bone, but we don't know if they counted.

There was evidence that number 1 existed, 20,000 years ago.

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