From which parts if the world did immigrants come to the u. s in this era?

Brainliestttme : ) how did the marshall plan impact the european economy in the post-world war ii era?

Why didn’t the united states participate in the league of nations? the u. s. senate did not want the country to join. president wilson did not want the country to join. the league of nations was only for european countries. the league of nations had failed to prevent world war 1

Reflect on what you learned in this lesson. write two paragraphs (150-250 words) explaining the benefits of studying history.