In your own words, Explain how and why new patterns migration affected society from 1750 to 1900

In the U.S. the large amount of immigrants who came from Europe caused a conservative Nativist movement and Quota acts.

they had many gains 1 one freedom for slaves the major cause of the civil war is that the   north wanted freedom for slaves but the south didn; t creaitng the civil war

another gain they have is poltiical influence

poltiical influence is a big thing everywhere even now peoplle are always trying to get the head up in poltics thats what they did by giving the republicians a good name for freeing slaves