Why did the united states follow a policy of unrestricted immigration for europeans during 1800s

The articles of confederation allowed congress to: make and borrow money. declare war. create a postal service. all of these choices are correct.

Which is true about the monroe doctrine?

Which of these factors could have influenced the sacco and vanzetti case? check all that apply a. prejudice or distrust toward immigrants b. fear or anarchist violence c. distrust of those who did not seem to fully support the government