Respuesta :
The Frontier Thesis, also known as Turner's Thesis, is an argument advanced by historian Frederick Jackson Turner in 1893 that appropriation of the rugged American frontier formed a settler colonial exceptionalism under the guise of American democracy.
Turner laid the intellectual groundwork for a new kind of US foreign policy, one that led the US into Cuba, the Philippines, Puerto Rico, and Guam during the Spanish-American War, by articulating the end of the American frontier and calling for new frontiers abroad.
Turner believed that conditions on the frontier shaped the American character, particularly the abundance of free land, the settlement of which fostered traits such as self-reliance, individualism etc.
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