Answer: railroads
Explanation:
because with this new material they later learned how to build railraods which changed america socially and economically
Transcendentalism!
Transcendentalism made between 1820s and 1830s in the eastern United States, helped people realize that there is more than everyone being the same, therefore this movement made everyone realize that you should listen to yourself and not your religion.
The right answer for the question that is being asked and shown above is that: "The 1960 census revealed that the U.S. population had just passed the 200 million mark and was the first toask questions about ethnic background."
They had to support the war efforts and work in the factories while the men were gone.
