Washington is a state in the Pacific Northwest region of the United States of America. The state is named after George Washington, the first President of the United States. It is the only U.S. state named after a president.

Washington was carved out of the western part of Washington Territory and admitted to the Union as the 42nd state in 1889. In 2006, the Census Bureau estimated the state's population at 6,395,798. Residents are called "Washingtonians" (emphasis on the third syllable, pronounced as tone). Washington is sometimes called Washington State or The state of Washington to distinguish it from Washington, D.C., the United States capital.

Prior to the arrival of explorers from Europe, this region of the Pacific Coast had many established tribes of Native Americans, each with its own unique culture. Today, they are most notable for their totem poles and their ornately carved canoes and masks. Prominent among their industries were salmon fishing and whale hunting. In the east, nomadic tribes traveled the land and missionaries such as the Whitmans settled there.

The first European record of a landing on the Washington coast was by Spanish Captain Don Bruno de Heceta in 1775, on board the Santiago, part of a two-ship flotilla with the Sonora. They claimed all the coastal lands up to the Russian possessions in the north for Spain.

In 1778, British explorer Captain James Cook sighted Cape Flattery, at the entrance to the Strait of Juan de Fuca, but the straits would not be explored until 1789, by Captain Charles W. Barkley. Further explorations of the straits were performed by Spanish explorers Manuel Quimper in 1790 and Francisco de Eliza in 1791, then by British Captain George Vancouver in 1792.

The Spanish Nootka Convention of 1790 opened the northwest territory to explorers and trappers from other nations, most notably Britain and then the United States. Captain Robert Gray (for whom Grays Harbor County is named) then discovered the mouth of the Columbia River. He named the river after his ship, the Columbia. Beginning in 1792, Gray established trade in sea otter pelts. The Lewis and Clark Expedition entered the state on October 10, 1805.

In 1819, Spain ceded their original claims to this territory to the United States. This began a period of disputed joint-occupancy by Britain and the U.S. that lasted until June 15, 1846, when Britain ceded their claims to this land with the Treaty of Oregon.

What was to become Washington state's first family was that of Washington's founder, the black pioneer George Washington Bush and his caucasian wife, Isabella James Bush, from Missouri and Tennessee, respectively. They led four white families into the territory and settled what is now Tumwater, Washington. They settled in Washington to avoid Oregon's racist settlement laws.

Because of the overland migration along the Oregon Trail, many settlers wandered north to what is now Washington and settled the Puget Sound area. The first settlement was New Market (now known as Tumwater) in 1846. In 1853, Washington Territory was formed from part of Oregon Territory. Washington became the 42nd state in the United States on November 11, 1889.

Early prominent industries in the state included agriculture and lumber. In eastern Washington, the Yakima Valley became known for its apple orchards, while the growth of wheat using dry-farming techniques became particularly productive. The heavy rainfall to the west of the Cascade Range produced dense forests, and the ports along Puget Sound prospered from the manufacturing and shipping of lumber products, particularly the Douglas fir. Other industries that developed in the state include fishing, salmon canning and mining.

For a long period, Tacoma was noted for its large smelters where gold, silver, copper and lead ores were treated. Seattle was the primary port for trade with Alaska and the rest of the country, and for a time it possessed a large shipbuilding industry. The region around eastern Puget Sound developed heavy industry during the period including World War I and World War II, and the Boeing company became an established icon in the area.

During the Great Depression, a series of hydroelectric dams were constructed along the Columbia river as part of a project to increase the production of electricity. This culminated in 1941 with the completion of the Grand Coulee Dam, the largest concrete structure in the United States.

During World War II, the state became a focus for war industries, with the Boeing Company producing many of the nation's heavy bombers and ports in Seattle, Bremerton, Vancouver, and Tacoma were available for the manufacture of warships. Seattle was the point of departure for many soldiers in the Pacific, a number of which were quartered at Golden Gardens Park. In eastern Washington, the Hanford Works atomic energy plant was opened in 1943 and played a major role in the construction of the nation's atomic bombs.

On May 18, 1980, following a period of heavy tremors and eruptions, the northeast face of Mount St. Helens exploded outward, destroying a large part of the top of the volcano. This eruption flattened the forests for many kilometers, killed 57 people, flooded the Columbia River and its tributaries with ash and mud and blanketed large parts of Washington in ash, making day look like night.

On January 30, 2006, Governor Christine Gregoire signed into law legislation making Washington the 17th state in the nation to protect gay and lesbian people from discrimination in housing, lending, and employment, and the 7th state in the nation to offer these protections to transgendered people. Initiative activist Tim Eyman filed a referendum that same day, seeking to put the issue before the state's voters. In order to qualify for the November election the measure required a minimum of 112,440 voter signatures by 5:00 p.m. June 6, 2006. Despite a push from conservative churches across the state to gather signatures on what were dubbed "Referendum Sundays," Eyman was only able to gather 105,103 signatures, more than 7,000 signatures short of the minimum. As a result, the law went into effect on June 7, 2006.