The revolts of 1830 and 1848 were based solely in France. Spain was never involved in these revolts, so this is true.
The American West was indeed a land of great opportunity from 1865 to 1900 in the sense that there was an abundance of land and resources available to all those willing to go west.
A. Cotton gin
The South was based on agriculture, which means lots of cotton was produced. The cotton gin is a machine which made this much easier.
The Mongols brought a lot of change to China. They undid the long-standing dynastic system of Chinese government and changed the system of government, getting rid of civil service exams that had put government bureaucrats in power.
i believe your correct (im sorry if im wrong)
