Olympia is the capital city of the U.S. state of Washington and the county seat of Thurston County. It was incorporated on January 28, 1859. The population was 46,478 at the 2010 census. Olympia is a major cultural center of the Puget Sound region.
The site of Olympia was home to Lushootseed-speaking peoples for thousands of years, including Squaxin, Nisqually, Puyallup, Chehalis, Suquamish, and Duwamish. The first recorded visit by Europeans was in 1792 when Peter Puget and a crew from the British Vancouver Expedition charted the site.
In 1846, Edmund Sylvester and Levi Smith jointly claimed the land that now comprises downtown Olympia. In 1851, the U.S. Congress established the Customs District of Puget Sound for Washington Territory and Olympia became the home of the customs house. Its population being steadily expanded from Oregon Trail immigrants, in 1853 the town settled on the name Olympia, at the suggestion of local resident Colonel Isaac N. Ebey, due to its view of the Olympic Mountains to the northwest. The area began to be served by a small fleet of steamboats known as the Puget Sound Mosquito Fleet.