The main difference is which part of Europe they came from, and the numbers of immigrants. There were many, many more "New Immigrants'" than old, 20 million people between 1880 - 1920. And the New Immigrants came mostly from southern and Eastern Europe, which meant they were almost all Catholics.
It made every one relze the new world
Answer:
Some say approximately 1 week. Some say under a week. It is undetermined for the most part, however one week is the easiest/exact response.
The peasants were the lowest class.