What theme best describes the first half of american history?

The theme that best describes the first half of American History is: "Race, racial ideologies, and race relations",

which is the Coming of Age extending from the European Xenophobia legacy and its intercultural interactions across their settlement, the brutal importation of African slaves, the American Revolution and next building up to the Civil War.

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.

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