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Period: to
Early Immigration
After the New World was discovered by Europeans, people from all over morthwestern Europe sailed across the Atlantic to settle North America. -
Period: to
Late 1800-1920s
That was the biggest movement of poeple in the history. -
Farm
Between 1845.1848 come over one million people to America because the farmland was cheap. -
Gold
After the discovery of gold in California in 1849 -
Diffrent groups
In 1920s was America build up of more than 100 diffrent ethnic groups.