The anti imperialism league was founded on June 15 1898 in Boston. The anti imperialists opposed the expansion because they believed imperialism violated the credo of Republicanism
John Dalton was a British scientist who made many important contributions to various fields of study. While he is probably best known for his groundbreaking research and contributions to atomic theory.
They ambushed the Mongol Empire in China.
Because they are important to the American people and symbolize America in a whole
The answer is Mathematics