the bulk of immigrants coming to the united states between the late 1880s and the 1920s came from
History of immigration to the United States After 1880 larger steam-powered oceangoing ships replaced sailing ships, which resulted in lower fares and greater immigrant mobility. Meanwhile, farming improvements in Southern Europe and the Russian Empire created surplus labor. Young people between the ages of 15 to 30 were predominant among newcomers. This wave of migration, constituting the third episode in the history of U.S. immigration, may be better referred to as a flood of immigrants, as nearly 25 million Europeans made the long trip. Italians, Greeks, Hungarians, Poles, and others speaking Slavic languages made up the bulk of this migration. 2.5 to 4 million Jews were among them.
1920 United States Census The Fourteenth United States Census, conducted by the Census Bureau one month from January 5, 1920, determined the resident population of the United States to be 106,021,537, an increase of 15.0 percent over the 92,228,496 persons enumerated during the 1910 Census.