During this period, the majority of immigrants to the United States came from Southern and Eastern Europe, including countries such as Italy, Poland, Russia, and Austria-Hungary.
This wave of immigration is often referred to as the "New Immigration" because it differed from the earlier arrivals of immigrants from Northern and Western Europe.
1910:
By 1910, the largest source of immigrants to the United States had shifted to Southern and Eastern Europe, with Italy being the single largest source country. Around this time, there was a significant increase in immigration from Greece, Portugal, and the Middle East.