The period when the immigrants were most favorably received by the US was in 1900s. The peak of this season was in 1907 when over 1 million immigrants were accepted.
Most immigrants derived from Europe
West and south
Most immigrants reside in Southeast King County.
north
Most of Western Europe, the United Kingdom, Australia, South Africa, Ireland.
Brazil
There were plenty of immigrants that came to the US before 1860. These immigrants were most often people from Europe looking for a better life.
Boston
Germany.
Since 1820, whatcontinent has sent the most immigrants to the U.S.? Asia
New York
Ellis Island