What is attributed to boosting college enrollment numbers from 50,000 students in 1870 to over 600,000 students by 1920?

The folsom culture was replaced by the plano culture. clovis culture. american indian culture. paleo-indian culture.

How did critics view the judicial reform bill under roosevelt? they thought that it would weaken the presidency and strengthen the court. they felt that it was an attempt to gain influence on the supreme court. they viewed it as a way to take power away from the government and give it to the people. they thought that it would bring an end to the programs created by the new deal.

During wwi, literacy tests were used to control immigration, which marked a return of what type of ideology in some americans?