1) In the late 1800s, most immigrants to the United States came from southern and eastern Europe rather than northern Europe. They entered through ports like New York and were inspected at Ellis Island.
2) Millions of immigrants came for economic opportunities and freedom from persecution, pushed by factors like poor farming conditions and pulled by plentiful jobs. They settled in ethnic neighborhoods in large cities.
3) Immigrant workers faced poor living and working conditions, such as overcrowded tenement housing and unsafe factories with long hours and low pay, including child labor. Events like the Triangle Shirtwaist Factory fire led to reforms for worker protections.