Pre-1851
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Earthquake of enormous magnitude hits the Pacific Northwest coast on January 26, 1700
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Smallpox epidemic ravages Native Americans on the northwest coast of North America in the 1770s
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Capt. Vancouver explores and names Puget Sound in 1792
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Hudson's Bay Company establishes first Puget Sound post in 1833
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Capt. Wilkes surveys and names Elliott Bay in 1841
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Great Britain cedes control of Oregon Country to the United States in 1846
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Congress creates Oregon Territory (including Washington and Idaho) in 1848
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Donation Land Claims Act takes effect on September 27, 1850, spurring American settlement of Oregon Territory.
1851-1860
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Collins, Van Asselt, and Mapel select first legal Donation Land Claims in King County on September 16, 1851
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Denny Party lands at Alki beach on November 13, 1851
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Denny Party select claims on site of Seattle on February 15, 1852
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Most of Denny Party settlers relocate to present-day downtown Seattle in April 1852
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Henry Yesler picks Seattle for Puget Sound's first steam-powered sawmill in fall of 1852
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King County created on December 22, 1852
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Manuel Lopes (1812-?) arrives and establishes Seattle's first black-owned business in 1852
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Washington Territory created on March 2, 1853
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Duwamish Coal Company established near Black River on October 20, 1853
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Most Native American tribal leaders sign treaties in 1855
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The Rev. David Blaine builds Seattle's first church in 1855
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Native Americans attack Seattle on January 26, 1856
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Population in King County in 1860 tops 300
1861-1870
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Territorial University (University of Washington) opens on November 4, 1861
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Catastrophic preventable smallpox epidemic kills 14,000 Northwest Coast Indians from April to December, 1862
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Seattle's first newspaper, Seattle Gazette, is published in 1863
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First group of Mercer's Maidens arrive in 1864
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Transcontinental telegraph reaches Seattle in 1864
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Chief Seattle dies in 1866
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Snoqualmie Pass wagon road completed on October 7, 1867
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U. S. Senate ratifies purchase of Alaska from Russia on April 9, 1867
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City of Seattle incorporated (for second time) in 1869
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Northern Pacific Railroad survey triggers land boom in 1870
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1870 Census: Population tops 1,100 in Seattle and 2,100 in King County in 1870
1871-1880
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Coal train runs on first railroad in Western Washington on March 25, 1872
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Schwabacher Brothers erect Seattle's first brick building in 1872
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Coal gas lights Seattle streets, businesses, and homes for the first time on December 31, 1873
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Northern Pacific Railroad picks Tacoma over Seattle for its western terminus in 1873
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Construction of independent Seattle & Walla Walla Railroad begins in 1874
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YMCA holds its first Seattle meeting on August 7, 1876
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Telephone is demonstrated in Seattle in 1878
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Squire's Opera House, Seattle's first theater, opens on November 24, 1879
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1880 Census: Population of King County nearly 7,000 and that of Seattle tops 3,500 in 1880
1881-1890
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Lynch mob hangs three men in Seattle on January 18, 1882
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Steamship, first to cross Pacific from Seattle, departs Seattle in December 1882
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Women granted right to vote in city elections (later repealed and restored) 1883
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Northern Pacific builds railroad spur from Tacoma to Seattle in 1884
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Chinese people rounded up by Seattle mob on February 7, 1886
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First electric generator demonstrated in 1886
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Ferry service starts between Seattle and West Seattle on December 24, 1888
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Washington is admitted as the 42nd state to the United States of America on November 11, 1889
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Electric trolley line in Seattle begins regular service on March 31, 1889
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Most of Seattle burns to the ground on June 6, 1889
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1890 Census: Population of King County tops 63,000 and that of Seattle tops 42,000 in 1890
1891-1900
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Seattle University forerunner, St. Francis Hall, opens in February 1891
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Annexation of north-of-downtown communities doubles Seattle's size on May 3, 1891
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Transcontinental travel from Seattle begins on June 11, 1893
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Panic of 1893 sends King County into a four year depression on May 5, 1893
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Classes begin at new University of Washington campus in 1895
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Japanese shipping firm begins regular run between Seattle and Japan on August 31, 1896
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Steamship docks in Seattle, with ton of gold, from Klondike on June 17, 1897
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First phase of Denny Hill regrade completed in 1899
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Seattle's first automobile, a Woods Electric, arrives in 1900
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Weyerhaeuser buys Northwest forests in one of history's largest land deals in 1900
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Population of Seattle tops 80,000 and that of King County tops 110,000 in 1900
1901-1910
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Seattle's first Sephardic Jews arrive in 1902
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Seattle Symphony Orchestra performs for the first time 1903
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Olmsted arrives in Seattle to design city parks in April, 1903
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Alaska Building, Seattle's first steel-framed skyscraper, is completed in 1904
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Cedar River Power Plant, first municipally owned power plant in the United States, starts on January 10, 1905
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Carnegie-funded Public Library opens in downtown Seattle in 1906
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Seattle's King Street station opens on May 10, 1906
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American Messenger Service, forerunner of UPS, begins in Seattle's Pioneer Square on August 28, 1907
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Pike Place Market in Seattle opens on August 17, 1907
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Seattle annexes six towns including Ballard and West Seattle in 1907
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Seattle's first "world's fair," Alaska-Yukon-Pacific Exposition, held in 1909
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Transcontinental auto race ends in Seattle on June 23, 1909
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Women in Washington state win the vote on November 8, 1910
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An airplane flies in Seattle for the first time in 1910
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Seattle City Light created in 1910
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Train disaster at Wellington kills 96 on March 1, 1910
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1910 Census: Census counts population of 240,000 in Seattle and 284,000 in King County in 1910
1911-1920
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King County voters create Port of Seattle in 1911
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Seattle voters reject Virgil Bogue's comprehensive Plan of Seattle in 1912
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Smith Tower, tallest building west of Mississippi, opens in 1914
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William E. Boeing builds his first airplane in 1916
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Washington voters prohibit sale and possession of alcohol in 1916
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Lake Washington Ship Canal is completed on May 8, 1917
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Stanley Cup won by Seattle Metropolitan hockey team on March 26, 1917
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Seattle takes over ownership and operation of the streetcar system on April 1, 1919
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General strike paralyzes Seattle for a week in February 1919
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Radio Station, Western Washington's first, starts broadcasting in 1920
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1920 Census: Population of Seattle tops 315,000 and that of King County nears 390,000 in 1920
1921-1930
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President Harding drops dead shortly after visiting Seattle in 1924
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Community bonds fund construction of Olympic Hotel in 1924
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Seattle elects Bertha K. Landes as first woman mayor of a major U.S. city in 1926
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Boeing begins forming United Airlines in 1927
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Boeing Field, Seattle's first municipal airport, opens on July 26, 1928
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Stock market crash halts downtown building boom in 1929
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Final phase of Denny Regrade completed in 1930
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Population of Seattle tops 365,000 and that of King County tops 460,000 in 1930
1931-1940
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Aurora Bridge completed in 1932
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"Hooverville" shantytown forms south of Pioneer Square in early 1932
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Seattle Art Museum opens in Volunteer Park on June 23, 1933
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West Coast waterfront strike spreads to Seattle harbor in 1934
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Boeing 247, first modern airliner, debuts in 1933
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Prototype of Boeing B-17 makes maiden flight in 1935
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Strike shuts down Seattle Post-Intelligencer in 1936
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Lake Washington Floating Bridge opens in 1940
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1940 Census: Population of Seattle stagnates at 368,000 and that of King County tops 500,000 in 1940
1941-1950
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Trackless trolleys and buses replace streetcars in Seattle Transit System on April 13, 1941
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Japanese Americans are ordered to evacuate Seattle on April 21, 1942
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Boeing intensifies production of bombers at Boeing and Renton factories in 1940s, and hires large numbers of women and African American workers for the first time
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Boeing B-29s drop atomic bombs on Japan, August 6, 1945, ending World War II
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University of Washington opens a medical school on October 2, 1946
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Canwell Commission begins investigating "Un-American Activities" in 1947
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First wide-audience TV broadcast is seen around Puget Sound on November 25, 1948
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Severe earthquake rattles region on April 13, 1949
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Port of Seattle dedicates Seattle-Tacoma International Airport in 1949
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1950 Census: Population of Seattle tops 465,000 and that of King County tops 730,000 in 1950
1951-1960
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First summer "Seafair" held in 1951
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First stage of Alaskan Way Viaduct, first downtown "freeway," opens in 1953
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Bellevue incorporates in 1953
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Seattle expands to its present boundaries in 1954
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Boeing 707 prototype makes maiden flight on July 15, 1954
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King County voters approve "Metro" plan to clean up Lake Washington in 1958
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UW scientist collects blood sample of first documented case of HIV in 1959
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Port of Seattle expansion is approved by King County voters on November 8, 1960
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Population of Seattle tops 550,000 and that of King County tops 925,000 in 1960
1961-1970
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President Kennedy delivers major policy speech at UW on November 16, 1961
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Seattle voters elect first Asian American, Wing Luke, to City Council in 1962
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Seattle "Century 21" World's Fair is held in 1962
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Teamster President Dave Beck (1894-1993) goes to prison on June 20, 1962
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Second Lake Washington Floating Bridge opens in 1963
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Washington State Commission on the Status of Women is formed on February 20, 1963
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Open housing referendum fails in Seattle in 1964
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Major earthquake rattles King County on April 29, 1965
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Seattle voters elect first African American, Sam Smith, to City Council on November 7, 1967
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Helix, Seattle's first underground newspaper, debuts on March 23, 1967
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King County voters adopt new "home rule" charter in November 5, 1968
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King County voters approve Kingdome and reject rail transit in "Forward Thrust" election of 1968
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Boeing-built Saturn booster sends Apollo 11 on first moon-landing mission in 1969
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First Boeing 747 flies in 1969
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Anti-war "Freeway March" blocks Interstate-5 in 1970
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Jimi Hendrix dies in London 1970 and is buried in Renton
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Population of Seattle dwindles to 530,000, less than half of total King County population of 1,150,000, in 1970
1971-1980
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Aerospace recession and "Boeing Bust" on September 18, leads to massive layoffs in 1971
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Seattle voters save Pike Place Public Market from demolition in 1971
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Dan Cooper parachutes from skyjacked jetliner on November 24, 1971
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King County voters approve creation of Metro Transit on September 19, 1972
- Ruby Chow becomes first Asian American elected to King County Council in November 1973
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Native American treaty fishing rights are affirmed by Federal Judge George Boldt on February 12, 1974
- Dorothy Hollingsworth is elected to Seattle School Board in 1975, becoming first African American woman to serve on school board in Washington state
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Following the fall of Saigon in 1975, thousands of Vietnamese and Cambodian refugees relocate in King County
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Kingdome opens to a crowd of 54,000 on March 27, 1976
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Seattle City Council rejects investment in "WPPPS" nuclear reactors on July 12, 1976
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Freighter Chavez rams West Seattle Bridge on June 11, 1978
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Seattle voters uphold gay and lesbian rights in 1978
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Seattle SuperSonics win NBA championship in 1979
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Mount St. Helens erupts on May 18, 1980, but ash cloud spares Seattle area
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Population of Seattle drops below 500,000 and that of King County increases to 1,250,000 in 1980
1981-1990
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Fourteen patrons of Wah Mee gambling parlor massacred in 1983
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Columbia Seafirst Center, tallest building in Seattle, opens doors to first tenants on March 2, 1985
- Ron Sims becomes first African American elected to the King County Council in November, 1985
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Microsoft sells first public shares on March 13, 1986
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Washington State Convention & Trade Center officially opens on June 23, 1988
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Serial killer Ted Bundy dies in the electric chair in Florida on January 24, 1989
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Norm Rice wins election as Seattle's first African American mayor on November 7, 1989
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Ted Turner's Goodwill Games open in Seattle on July 20, 1990
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Bus service begins in downtown Seattle transit tunnel on September 15, 1990
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Fred Hutchinson Cancer Center researcher Dr. E. Donnall Thomas wins 1990 Nobel Prize for pioneering bone marrow transplants
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Original Lake Washington Floating Bridge sinks on November 25, 1990
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Population of King County exceeds 1.5 million and Seattle rebounds to 515,000 in 1990
1991-2000
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Velma Veloria first Asian American to be elected to the Washington State Legislature on November 3, 1992
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Gary Locke becomes first Asian American to be elected King County Executive on November 2, 1993
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President Clinton convenes APEC summit on Blake Island on November 20, 1993
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Seattle Mariners win the American League West pennant on October 2, 1995
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Sound Transit plan clears second vote on November 5, 1996
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State Legislature approves funds for Mariners Stadium in 1996
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Seattle voters approve extension of Monorail in 1997
- Ron Sims elected first African American King County Executive in November, 1997
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Seattle voters approve "Libraries for All" bonds in 1998
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Puget Sound salmon stocks listed as endangered species in March 1999
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Federal judge declares Microsoft a monopoly on November 5, 1999
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Safeco Field wins, Mariners lose, in stadium debut on July 15, 1999
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Seattle hosts WTO Ministerial Conference in November 1999
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Swedish Hospital merges with Providence Hospital and discontinues elective abortions on February 29, 2000
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Kingdome is imploded on March 26, 2000