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Period: to
Westward Expansion and Frontier
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Louisianna Purchase
The Louisianna purchase marked a new period of westward expansion for America -
Manifet Destiny
John O’Sullivan coins the term Manifest Destiny that becomes the embodiment of the westward expansion idea in America. -
Mexican American War Starts
President Polk declares war on Mexico -
Period: to
Mexican American War
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California becomes a state
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Home by the Lake
Church paints Home by the Lake. -
The Backwoods of America
Jasper Cropsey paints The Backwoods of America -
Valley of the Catawissa in Autumn
Thomas Moran paints Valley of the Catawissa in Autumn.