Answer:
Between 1870 and 1900, the largest number of immigrants continued to come from northern and western Europe including Great Britain, Ireland, and Scandinavia. But "new" immigrants from southern and eastern Europe were becoming one of the most important forces in American life.
Explanation:
A unified group of countries, the Communist bloc was located in central and Eastern Europe, East Asia and Southeast Asia under the hegemony of the URSS. This bloc was denominated as Eastern bloc. And encompassed countries such as Poland, Romania, Bulgaria, Hungary and several other European countries. This was a group that was led by the mighty Stalin of USSR.
The industrial revolution increased the power and wealth of "factory owners" mostly, but this is a misleading question, since the revolution increased the wealth of practically everyone except the aristocracy.