What did turner thesis explain

The Frontier Thesis or Turner Thesis, is the argument advanced by historian Frederick Jackson Turner in 1893 that American democracy was formed by the American frontier. He stressed the process-the moving frontier line-and the impact it had on pioneers going through the process.

the turner thesis is the conclusion of frederick jackson that what makes america different & great has always been the american frontier, the region between urbanized, civilized society and the untamed wilderness. in the thesis, the frontier created freedom.