History of Washington (state) result, the law went into effect on June 7, 2006. The Washington legislature introduced more advanced converge of domestic partnerships in 2008. History of Washington (state) The history of Washington includes thousands of years of Native American history before Europeans and Americans arrived and began to establish territorial claims. The region was part of Oregon Territory from 1848 to 1853, after which it was separated from Oregon and established as Washington Territory. In 1889, Washington became the 42nd state of the United States. Archaeological evidence shows that the Pacific Northwest was one of the first populated areas in North America.
California Pacific International Exposition the remaining original buildings to be declared a National Historic Landmark, which was awarded in 1978. In the latter 1990s the buildings most deteriorated or that had burned were carefully rebuilt to restore the original style and scale of the park's public spaces. In October 2010, the National Building Museum in Washington, D.C. opened an exhibition titled "Designing Tomorrow: America's World's Fairs of the 1930s". This exhibition, which was available for view until September 2011, prominently featured the California Pacific International Exposition. California Pacific International Exposition The California Pacific International Exposition was an exposition held in San Diego, California during