Colonial America looks west (1754-1795) -- The United States extends its empire (1796-1811) -- Crisis on the frontier (1812-1820) -- An expanding nation (1821-1845) -- A transcontinental republic (1846-1853) -- Wealth of the west (1854-1860) -- Reshaping the west (1861-1867) -- Frontier's end (1868-1900) -- The real significance of the fronitier.
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