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13,200 BCE - Earliest evidence of human habitation in Oregon, discovered in 1938 at Fort Rock Cave in modern day Lake County. [1]13,000-11,000 BCE - The Missoula floods inundate and scour large portions of the state along the Columbia River and in the Willamette Valley before entering the Pacific Ocean.
An enlargeable map of the 36 counties of the state of Oregon. The 36 counties of the state of Oregon. Cities in Oregon. State capital of Oregon: Salem; Largest city in Oregon: Portland (23rd most populous city in the United States as of July 2006. [4]) City nicknames in Oregon; Unincorporated communities in Oregon; Census-designated places in ...
History of Oregon. The construction of dams, like The Dalles Dam, was central to the power supply of the region. The history of Oregon, a U.S. state, may be considered in five eras: geologic history, inhabitation by native peoples, early exploration by Europeans (primarily fur traders), settlement by pioneers, and modern development.
Missouri Compromise, 1820 federal statute enabling the admission of Missouri (a slave state) and Maine (a free state) into the Union. Toledo War, 1835–36 boundary dispute between Ohio and the adjoining Michigan Territory, which delayed Michigan's admission to the Union. Texas annexation, the 1845 incorporation of the Republic of Texas into ...
Seal of Oregon. The Seal of the State of Oregon is the official seal of the U.S. state of Oregon. It was designed by Harvey Gordon in 1857, two years before Oregon was admitted to the Union. The seal was preceded by the Salmon Seal of the Provisional Government and the Seal of the Oregon Territory. The state seal is mandated by Article VI of ...
The encyclopedia is a project of Portland State University 's History Department, the Oregon Council of Teachers of English, and the Oregon Historical Society. It has drawn support from Oregon Cultural Trust partners Oregon Arts Commission, Oregon Council for the Humanities, Oregon Cultural Heritage Commission, and the Oregon State Historic ...
The Oregon Centennial was the 100th anniversary of the statehood of the U.S. state of Oregon. The day of the anniversary was February 14, 1959, but centennial events took place throughout the year. Festivities were held all over the state, with the major attractions at the Oregon Centennial Exposition and International Trade Fair, located at ...
Unorganized territory created by the Oregon Treaty, 1846–1848. Territory of Oregon, 1848–1859. Oregon Organic Act, August 14, 1848 [1] Northern portion of Oregon Territory incorporated in new Washington Territory, March 2, 1853. State of Deseret (extralegal), 1849–1850. State of Oregon since 1859.