Immigrants from Central, Eastern, and Southern Europe were dominant in the US from 1891-1920.
From 1891-1920, the dominant region of origin for immigrants arriving in the US was Central, Eastern, and Southern Europe. Immigrants from countries such as Italy, Greece, Russia, and Poland came in large numbers during this period, settling in urban areas and finding work in the growing manufacturing sector.
https://brainly.com/question/11427217