Old enough to know better; and too young to care...LOL!
The there is a lot if dissent on age. I think we need better methods of determining age before we can nail down a reliable time line.
Also it is critical how you believe man got here. If you follow darwin, it must be longer than if you don't.
Interesting question for sure! I saw a very interesting time line made by coring bristle cone pines, that goes back 8,000 years. That's what I can measure. So that's my guess. ♡♡♡