The Mesopotamians made many technological discoveries. They were the first to use the potter's wheel to make better pottery, they used irrigation to get water to their crops, they used bronze metal (and later iron metal) to make strong tools and weapons, and used looms to weave cloth from wool.
There were a lot of Native American tribes, so societies had a tribal focus.
They didn't care much about wealth or capitalism. All that mattered to them was making sure they kept themselves alive.
Then the Europeans came and ruined all of that.
Americans like William Lloyd Garrison and Frederick Douglass were some of the driving forces behind the anti-slavery movement.
