The document summarizes key events and developments in the Americas during the 19th century. It discusses how gold mining and mass migration transformed the populations of countries in North and South America. It also describes the United States expanding westward which caused conflicts with indigenous peoples and Mexico. The American Civil War erupted over the issue of slavery and ultimately led to its abolition in the US.

1. A Difficult Past- How the Americas Change By Nadya Dooley 2/22/11