USA HISTORY

Detailed explanation-1: -They came for many reasons, including land, religious freedom, and the chance to start new lives. In the late 1800s, jobs created by the rapid growth of the U.S. economy drew millions of new immigrants. Millions of immigrants came to the United States from northern Europe in the mid-1800s.

Detailed explanation-2: -U.S. immigration has occurred in waves, with peaks followed by troughs (see figure). The first wave of immigrants, mostly English-speakers from the British Isles, arrived before records were kept beginning in 1820.