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United States History: 1900-1999 Timeline

1900-1924

1901 (September 6) Assassination of President McKinley

1901 (November 18) Hay-Pauncefote Treaty (preliminary to creation of Panama Canal)

1900 & 1904 American Somoa (unincorporated and unorganized US Territory)

1903 (June 16) Ford Motor Company Formed

1903 (November 18) Hay–Bunau-Varilla Treaty / Panama Canal Zone

1903 (December 17) Wright Brothers make first powered flight

1907 (November 16) Oklahoma enters the Union (46th state)

c.1910 - 1970 The Great Migration

1912 (January 6) New Mexico enters the Union (47th state)

1912 (February 14) Arizona enters the Union (48th state)

1914 (July 28) - 1918 (November 11) World War I

1915 (July 28) - 1934 (August 1) United States occupation of Haiti

1917 (May 28 & July 1-2) East St. Louis Riots

1917 Virgin Islands of the United States (unincorporated and organized US Territory)

1920-1933 Prohibition

1921 (May 31 - June 1) Tulsa Race Riot (Greenwood Massacre)

1921-1923 Teapot Dome scandal

1929 Stock Market Crash (Wall Street)

1929-1941 Great Depression

1925-1949

1929-1939 The Great Depression & The New Deal

1933-1938 New Deal


Harry Hopkins

1935 American Equatorial Islands Colonization Project

1939 (September 1) - 1945 (September 2) World War II

1942 (Feb. 19) - 1946 (Mar. 20) Internment of Japanese Americans

1945-1989 Cold War between United States and U.S.S.R.

1947 (June 5 drafted) & 1948 (April 3 effective) Marshall Plan (European Recovery Program - ERP)

1949 (September 6) Camden, New Jersey Murders (Howard Unruh)

1949 Groveland Four case

1950-1974

1950 (June 25) - 1953 (July 27) Korean War

c1954 - c1968 New Civil Rights Movement Begins

1954 Brown vs. Board of Education

1955 (August 28) Murder of Emmett Till

1955 (November 1) - 1975 (April 30) Vietnam War (American combat soldiers enter on March 8, 1965)

1959 (January 3) Alaska enters the Union (49th state)

1959 (August 21) Hawaii enters the Union (50th state)

c1960-1980 Fourth Great Awakening

1961 (April 17-20) Bay of Pigs Invasion

1961 (May 25) President Kennedy sets goal of landing a man on the moon by 1970

1962 - America's First Nuclear Accident (Idaho Falls)

1964 (May 7) Crash of Pacific Air Lines Flight 773

1964 (July 2) Civil Rights Act

1965 (August 9) Voting Rights Act of 1965

1967 (June) Robert S. McNamara (Secretary of Defense) commissions Pentagon Papers

1967 (October 2) Thurgood Marshall sworn into Supreme Court

1968 (December 21-27) Apollo 8 Mission Orbits the Moon

1969 (June 28 - July 1) Stonewall Riots

1969 (July 16) First Manned Moon Landing / Apollo 11

1970 (May 4) Kent State University Shootings

1973 Roe vs. Wade

1975-1999

1977 (September 7) Torrijos-Carter Treaties giving control of Panama Canal to Panama by 1999

1978 (August 2) Love Canal declared state emergency by President Carter

1978 (November 18) Jonestown Massacre

1979 (November 4) - 1981 (January 20) Iran hostage crisis

1979-1989 Operation Cyclone (CIA program of arming and financing mujahideen in Afghanistan)

1979 (November 4) - 1981 (January 20) Iran Hostage Crisis

1980 Carter Administration begins (Reagan Administration continues funding) Government of El Salvador to fight FMLN

1981 Ambassador Robert White dismissed by Reagan administration for refusing to take part in the coverup of the Salvadoran Military's murder of four American nuns

1981-1990 US support of Chadian Dictator Hissène Habré

1983 (February 22) Times Beach residents begin relocation after largest dioxin exposure in U.S. history

1983 (October 25-29) US Invasion of Grenada

1984 (July 18) San Ysidro McDonald's massacre

1986 (August 20) Edmond Post Office Shooting

1986 Northern Mariana Islands (US Commonwealth Territory)

1987 (December 7) Pacific Southwest Airlines Flight 1771 Crash

1988 (June 14 - Nov. 18) Yellowstone Fires

1988 (August 10) Civil Liberties Act of 1988


LibGuide

1988 (November 2) Morris worm released / first felony conviction in the US under the 1986 Computer Fraud and Abuse Act

1988 (November 8) George H.W. Bush elected 41st President of the United States

For more on President George H.W. Bush visit the President's: Books & DVDs tab

1988 (December 21) Pan Am Flight 103 bombing

1989 (March 24) Exxon Valdez Oil Spill

1989 (June 30) James Claude Wright Jr. becomes first U.S. Speaker of the House of Representatives to resign amid scandal

1989 (October 27) Office of National Drug Control Policy established

1989 (December 20) - 1990 (January 31) United States Invasion of Panama

1990 (April 24) Hubble Space Telescope launched into orbit

1990 (June 1) U.S.–Soviet Chemical Weapons Accord

1990 (July 26) Americans with Disabilities Act of 1990

1990 (August 2) - 1991 (February 28) Gulf War

1991 (July 31) START I - Strategic Arms Reduction Treaty between USSR and US

1991 (October 16) Luby's Shooting / Massacre in Killeen, Texas

1991 (October 23) Clarence Thomas sworn in as Supreme Court Justice

1991 (December 26) Dissolution of the Soviet Union / End of the Cold War

1992 (August 15-28) Hurricane Andrew

1992 (August 21-31) Ruby Ridge Standoff

1992 (November) Bill Clinton elected 42nd president

For more on Bill Clinton, visit the Presidents: Books & DVDs tab

1993 (January 3) START II (Strategic Arms Reduction Treaty between United States and Russia signed

1993 (February 26) World Trade Center Bombing

1993 (February 28 - April 19) Waco Siege

1993 (April-October) Great Mississippi and Missouri Rivers Flood of 1993

1993 (July 1) Mass Shooting - 101 California Street Shooting - San Francisco

1993 (Aug. 22 - Oct. 13) Operation Gothic Serpent

1993 (October 3-4) Battle of Mogadishu

1993 (November 30) Brady Handgun Violence Prevention Act

1994 (January 17) Northridge, California Earthquake

1995 (April 19) Oklahoma City Bombing

1995 (Nov. 14-19) & 1995-1996 (Dec. 16 Jan. 6) Federal Government Shutdowns

1996 (June 25) Khobar Towers Bombing - Hezbollah Terrorists

1996 (July 17) TWA Flight 800 explosion and crash killing 230 passengers

1996 (August 22) Personal Responsibility and Work Opportunity Act

1998 Clinton-Lewinsky scandal

1998 (August 7) United States embassy bombings in Nairobi, Kenya and Dar es Salaam, Tanzania

1998 (October 12) Murder of Matthew Shepard

1999 (March 24) - 1999 (June 10) US joins Operation Allied Force (Kosovo War)

1999 (April 20) Columbine High School Massacre