Which group of people worked, farmed, lived on the lands before they were “improved”

56: 58 the assembly line was a system through which items were mass-produced in a flow.

What was one effect of the rise of factories during the industrial revolution

I’m learning abt the manifest destiny and i don’t know who the people are in the picture can someone tell me who is on the left hand side, right hand side, the women in the center? ?