Steel. Andrew Carnegie used it to mass produce steel cheaply and efficiency.
Having more people living in and around cities than ever before
The Native Americans had the idea that you couldn't own land, it belonged to the gods. Native Americans also had the idea of "Communalism" which is the idea that everything in the tribe could be used by the tribe. The Europeans had been owning land and purchasing it for private use for centuries and had a deep culture of land ownership dating well past the middle ages.
They were apart of the <span>Anti-federalist group.</span>
