Answer: The factory system was a new way of making products that started during the Industrial Revolution.
The U.S did not join the League of Nations following WWI. Even the the President of the United States at that time, Woodrow Wilson, was enthusiastic about the organization, they didn't officially join it. The reason why they didn't join it was because of isolationists in congress, in other words, people that didn't agree with what other people are interested in. Because of the war and all of the fatal deaths of Americans, people didn't want the U.S to be affiliated with Europe in any way.
Fredrick Douglas was the African American who said the Mexican War was "disgraceful" because he thought if America would annex Mexico then slavery would be carried over into the new territory.
The reason why <span>the turmoil of the French revolutionary years resulted in a conservative European reaction was because the voices of "liberty" during the Revolution quickly devolved into movements of terror, which did away with practically all of the liberty that was gained. </span>
There should be no interference with slavery in the states in which it already existed... not sure if correct .