This document summarizes the independence movements and subsequent developments in Latin America during the 19th century. It discusses how independence movements led to new nations that struggled due to a lack of political foundations and internal conflicts. Economic improvements from new technologies helped boost trade. Enlightenment ideas spread new social and political concepts. British trade played a major role until being replaced by the United States in the early 20th century. Independence wars occurred across Latin America, led by figures like Bolivar and San Martin. Mexico had its own revolution and Central America formed a federation.