Most of school going humans are aware of the concept of force and motion.

We have vague ideas of the laws that govern them roughly 400 years after their discovery by Newton.

On the basis of that, one can form a rough estimate that it would take humans another 30-40 years to assimilate quantum mechanics and special relativity.

the funny thing about Custer is that he was warned about the ambush but his hubris was just too much

also it is rumored among those that have heard direct stories from people that were there was that it was a woman that made the killing blow on him and they probably scalped and then dismembered him and most of his men, and thats why nobody found him

follow it up with “Guns, Germs, and Steel”

what would you estimate the time to be ? For school going people.