History of Seattle 1900–1940

History of Seattle, Washington 1900–1940: Seattle experienced rapid growth and transformation in the early 20th century, establishing itself as a leader in the Pacific Northwest. The Klondike Gold Rush led to massive immigration, diversifying the city's ethnic mix with arrivals of Japanese, Filipinos, Europeans, and European-Americans. The city expanded geographically through annexations and ambitious regrade projects, most notably the Denny Regrade which leveled more than 120 feet of Denny Hill. Major infrastructure projects shaped the city, including the construction of the Lake Washington Ship Canal and the development of an extensive park system designed by the Olmsted Brothers. The Alaska-Yukon-Pacific Exposition of 1909 celebrated the city's rise, while the completion of Smith Tower in 1914 gave Seattle the tallest building west of the Mississippi River.

The interwar period brought significant challenges to Seattle. World War I initially boomed the economy, particularly in shipbuilding and lumber, but the city faced a sharp downturn when the war ended. The Seattle General Strike of 1919 marked a period of labor unrest, and the city was hit hard by the Great Depression. Despite economic difficulties, Seattle developed as an arts center during this time. The Frye Art Museum and Henry Art Gallery were established, and artists like Mark Tobey and Morris Graves gained national recognition. The Prohibition era saw a thriving speakeasy scene, and by mid-century, Seattle's Jackson Street jazz scene would launch the careers of musicians including Ray Charles and Quincy Jones. Despite the challenges, the city maintained its character, with affordable housing and extensive parks making it an attractive place to live for those who remained employed.