Answer:
Yes, the US fairly bought much land from the French. However the US got into a war with Spain for the southwest region, however, that is justifiable.
Answer:
there is no graph, so I can't answer
They're all about rights and representative government.
An economic slump due to the government over spendings in Vietnam
It was the "Chinese Exclusion Act" of 1882 that excluded an entire ethnic group from immigrating to the United States, partly because of economic fears but also because of blatant racism.