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.
Washington State Cougars baseball renovations of Martin Stadium, Washington State's football venue, led to the construction of a new running track. It was to be located on the site of today's Bailey–Brayton Field, but excavation difficulties led to an exchange of sites. The Mooberry Track was built on the old Bailey Field, north of Martin Stadium, and a new baseball venue was built to the east, retaining the name Bailey Field. In 1984, stadium lighting was installed at the venue, and the first nighttime college baseball game in the Pacific Northwest was played between Washington State and Washington on May 11, 1984. In 1989,