US History Industrial Revolution 19th and 20th Century

Why did so many people want to come to the U.S. in the late 1800s and early 1900s? Referring to the bar graph on page 529, which two regions of Europe did most immigrants come from between 1870-1920? What were the settlement patterns of immigrants when they came to the U.S.? Reading Guide - Chapter 15-3: The Challenge of the Cities. Vocabulary: ................
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