Timeline of Portland, Oregon

1900s–1940s

• 1901 – Columbia University and Hill Military Academy established.^[1]
• 1903 – Olmsted Portland park plan created.
• 1905 – June 1: Lewis and Clark Centennial Exposition opens.
• 1906 – Trinity Episcopal Cathedral consecrated.^[1]
• 1907
  • Portland Rose Festival begins.
  • Portland Mill Strike of 1907 begins in March by lumber mill workers organized by the Industrial Workers of the World. The strike inspired unionization campaigns of bakers and sewer workers in Portland but had been called off by the end of April without winning its demands.^[12][13]
• 1908 – Reed College founded.

• 1909
  • Audubon Society founded^[14]
  • Museum Art School founded.
  • Washington Park created.
• 1910
  • Hawthorne Bridge opens.
  • Population: 207,214.^[1]
• 1912 – Steel Bridge and Globe Theatre^[15] open.
• 1913 – Broadway Bridge and Central Library building open.
• 1915 – Linnton and St. Johns become part of city.
• 1916
  • City Club of Portland established.
  • Flatiron Building constructed.
• 1917
  • Interstate Bridge opens.
  • Rose Test Garden established.
  • Portland Public Auditorium opens.
• 1918- Portland is quarantined for a month, because of the Spanish Flu epidemic.
• 1919 – Louis' Oyster Bar in business.
• 1920 – Population: 258,288.
• 1920s – Pacific International Livestock Exposition facility built.
• 1921
  • Blue Mouse Theatre in business.^[15]
  • St. Johns Water Tower built, at 7020 N. Oswego Ave.
• 1922
  • Hoyt Arboretum founded.
  • KGW radio begins broadcasting.
• 1924
  • Portland Junior Symphony established.
  • Founding of The Grotto (National Sanctuary of our Sorrowful Mother)
• 1925 – Sellwood Bridge opens.
• 1926
  • Second (and current) Burnside Bridge opens.^[16]
  • Ross Island Bridge opens.
  • Hollywood Theatre and Temple Beth Israel built.^[16]
• 1927 – Terminal Sales Building constructed.
• 1928 – Portland Publix Theater and Geller's Theatre^[15] open.
• 1930 – Swan Island Airport built.
• 1932 – Portland Art Museum building opens.
• 1936 - Portland International Airport opened.
• 1938 – Lewis & Clark College active.
• 1944 – Oregon Museum of Science and Industry established.
• 1945 – Urban League branch and Portland Symphonic Choir^{[17][not specific enough to verify]} founded.
• 1946 – Vanport Extension Center (college) and Portland Children's Museum established.
• 1948
  • May 30: Flood destroys the community of Vanport.
  • Forest Park established.

1950s–1990s

• 1950 – Last city streetcar lines (of the pre-MAX and Portland Streetcar era) cease operation.^[18]
• 1951 – The Portland Hotel closes and is torn down.
• 1952 – KPTV, a UHF station initially, inaugurates television broadcasting in Portland (and Oregon).
• 1953 – KOIN-TV, city's first VHF television station, begins broadcasting.
• 1955 – Portland State College established.
• 1956
  • Rose City Transit established, taking over mass transit service in Portland.
  • KGW begins its television broadcasting.
  • National College of Naturopathic Medicine established.
• 1957 – Metropolitan Service District (regional governmental agency) established.
• 1958
  • Portland Development Commission formed.^[3]
  • Last interurban streetcar lines (until MAX), to Oregon City and Bellrose, cease operating.
  • Portland Zoo Railway begins operating.
  • Third (and current) Morrison Bridge opens.^[3]
• 1959
  • Oregon Centennial Exposition and International Trade Fair held.
  • Sister city relationship established with Sapporo, Japan.^[19]
  • Portland Zoo (now Oregon Zoo) moves to its current site in Washington Park.
• 1960
  • Veterans Memorial Coliseum and Lloyd Center open.
  • Population: 372,676; metro 881,961.
• 1961 – Portland Community College established.
• 1962
  • March 15: KATU television begins broadcasting.
  • April 14: Packy is born at the Portland Zoo, the first elephant born in the Western Hemisphere in 44 years.
  • October 12: Windstorm, widely known as the Columbus Day Storm.
  • Cinema 21 in business.^{[15][relevant?]}
• 1964 – Christmas flood of 1964
• 1965 – Pittock Mansion (house museum) opens.
• 1967 – Portland Japanese Garden opens.
• 1968 – KJIB and KBOO radio begin broadcasting.
• 1969 – Tri-Met (Tri-County Metropolitan Transportation District of Oregon) established, replacing Rose City Transit.
• 1970
  • People's Food Co-op founded.
  • Portland Trail Blazers of the NBA founded.
• 1971
  • Powell's Books in business.
  • Northwest Film Study Center established.
  • World Forestry Center opens.
• 1972
  • April 15: 1972 Portland–Vancouver tornado.
  • First National Bank Tower built.
  • Food Front Cooperative Grocery organized.^{[20][21][relevant?]}
• 1973
  • January 2: Neil Goldschmidt becomes mayor.
  • November 15: Fremont Bridge opens.
• 1974
  • Oregon Health & Science University established.
  • Willamette Week newspaper begins publication.
• 1975 – Blue Sky Gallery founded.^[relevant?]
• 1977 – Portland Transit Mall and Adventist Medical Center building open.
• 1978 – Waterfront Park opens.
• 1979 – Save the Refugees Fund (now Mercy Corps) headquartered in city.
• 1980 – Frank Ivancie becomes mayor.^[22]
• 1982
  • Oregon Food Bank active.^[23]
  • The Portland Building is constructed.
  • Wieden & Kennedy in business.
• 1983
  • U.S. Bancorp Tower built.
  • Sister city relationship established with Guadalajara, Mexico.^[19]
• 1984
  • Pioneer Courthouse Square opens.
  • KOIN Center built.
  • KKCW radio begins broadcasting.
• 1985 – Bud Clark becomes mayor.
• 1986 – MAX Light Rail begins operating.
• 1987
  • Oregon Vietnam Veterans Memorial opens.
  • Sister city relationships established with Ashkelon, Israel; and Ulsan, South Korea.^[19]
• 1988
  • Oregon Brewers Festival and Waterfront Blues Festival begin.
  • Sister city relationships established with Kaohsiung, Taiwan; Khabarovsk, USSR; and Suzhou, China.^[19]
• 1989 – Oregon Ballet Theatre formed.
• 1990
  • Bicycle Transportation Alliance organized.
  • Population: city 437,319;^[24] metro 1,523,741.
• 1991 – Sister city relationship established with Mutare, Zimbabwe.^[19]
• 1992 – First Portland Farmers Market
• 1993 – Vera Katz becomes mayor.
• 1994 – Reading Frenzy^[25] and Higgins Restaurant^[26] in business.^[relevant?]
• 1995 – Rose Garden Arena (now Moda Center) opens.
• 1996
  • January–February: Willamette Valley Flood of 1996.
  • City website online (approximate date).^{[27][chronology citation needed]}
  • Earl Blumenauer becomes Oregon's 3rd congressional district representative.^[28]
  • Portland Institute for Contemporary Art founded.
• 1998
  • The 60-year-old Rodgers variety store chain closes its last three stores.
  • Street Roots begins publication.
• 1999
  • Stumptown Coffee in business.^{[26][relevant?]}
  • Urban Greenspaces Institute founded.^[29]
• 2000
  • Portland Classical Chinese Garden opens.
  • The Portland Mercury newspaper begins publication.
  • Red and Black Cafe founded.^[relevant?]
  • Hip Mama relocates from Oakland, California to Portland.
  • Dignity Village founded