1.What brought immigrants to the us in such large numbers during the period of 1890 to 1920?
2. What kind of social experience did these immigrants have?
3. Did these immigrants strive to assimilate or to maintain their ethnic identies?
4. What role did race play in the assimilation process?

I am more concerned with question 3 and 4. Is anyone willing to help me?

Assimilation, Immigrants, Large Numbers, Social Experience