What was a significant technological breakthrough that occurred during the paleolithic era?

One can say that dominating fire was one major breakthrough. Men were already using rock tools in this age and it was an amazing breakthrough in history of man, but learning how to dominate fire was a game changer. It made them live longer, since they had a way to scare the predators, make light at night and to defrost meat.

b.

explanation:

he is racist

"oh, lets coppy china and build a great wall around bla bla bla.that way,we wont lose out to other countries." in the end, he did not build anything

i'm asking the same thing i asked this other cat all of