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In War of 1818, the Treaty of Joint Occupation of Oregon was a result for that agreement and was renewed in 1827.
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Period: to
Oregon Territory
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The Adams-Onis Treaty establishes the 42nd parallel as the southern boundary of the Oregon Country.
February 22, 1819 -
Oregon Treaty peacefully designates the 49th parallel as the northern boundary of the United States.
Oregon Treaty peacefully designates the 49th parallel as the northern boundary of the United States. -
A measles epidemic spreads among Indians of the Columbia Plateau; Whitman Massacre; Cayuse War
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The forthy-ninth parallel at the boundary of Oregon Country and the Treaty of Guadalupe Hidalgo brought future western states under the American flag.
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Congress creates the Oregon Territory.
Congress creates the Oregon Territory. -
The Congress made treaties whenever necessary with the Indians in the Oregon Territory
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Oregon becomes the 33rd state in the Union as a free state.