Washington, D.C.
City
Capital of the United States since 1800, on the Potomac River.
Held by
- since 1789 United States
Capital of
- since November 17, 1800 United States
Events here 86
- August 24–25, 1814 Burning of Washington
- March 6, 1820 Missouri Compromise
- December 2, 1823 Monroe Doctrine
- January 24, 1826 Treaty of Washington (1826)
- 1832 – 1833 Nullification crisis
- August 9, 1842 Webster–Ashburton Treaty
- May 24, 1844 First Morse telegraph line
- June 15, 1846 Oregon Treaty
- September 9–20, 1850 Compromise of 1850
- 1854 Canadian–American Reciprocity Treaty
- May 30, 1854 Kansas–Nebraska Act
- March 6, 1857 Dred Scott v. Sandford
- January 1, 1863 Emancipation Proclamation
- July 11–12, 1864 Battle of Fort Stevens
- April 14, 1865 Assassination of Abraham Lincoln
- December 6, 1865 Thirteenth Amendment to US Constitution
- April 9, 1866 Civil Rights Act of 1866
- May 31, 1870 Enforcement Act of 1870
- 1871 Treaty of Washington (1871)
- February 28, 1871 Second Enforcement Act
- April 20, 1871 Third Enforcement Act
- March 1, 1875 Civil Rights Act of 1875
- July 2, 1881 Assassination of James A. Garfield
- May 6, 1882 Chinese Exclusion Act
- May 18, 1896 Plessy v. Ferguson
- December 2, 1899 Tripartite Convention
- 1900 Treaty of Washington (1900)
- November 18, 1901 Hay–Pauncefote Treaty
- January 22, 1903 Hay–Herrán Treaty
- November 18, 1903 Hay–Bunau-Varilla Treaty
- May 15, 1911 Standard Oil Co. of New Jersey v. United States
- January 8, 1918 Fourteen Points
- August 18, 1920 Nineteenth Amendment to the United States Constitution
- November 1921 – February 1922 Washington Naval Treaty
- November 12, 1921 – February 6, 1922 Washington Naval Conference
- February 6, 1922 Nine-Power Treaty
- July 28, 1932 Bonus Army
- March 9, 1933 – 1939 New Deal
- April 15, 1935 Roerich Pact
- January 1, 1942 Declaration by United Nations
- 1946 International Convention for the Regulation of Whaling
- March 12, 1947 Truman Doctrine
- April 3, 1948 – December 31, 1951 Marshall Plan
- April 4, 1949 North Atlantic Treaty
- May 17, 1954 Brown v. Board of Education
- 1958 US–UK Mutual Defence Agreement
- December 1, 1959 Antarctic Treaty System
- January 19, 1960 Treaty of Mutual Cooperation and Security between the United States and Japan
- August 28, 1963 March on Washington for Jobs and Freedom
- July 2, 1964 Civil Rights Act of 1964
- August 6, 1965 Voting Rights Act of 1965
- January 27, 1967 Outer Space Treaty
- April 11, 1968 Fair Housing Act
- May 12 – June 24, 1968 Poor People's Campaign
- July 1, 1968 Treaty on the Non-Proliferation of Nuclear Weapons
- April 22, 1970 First Earth Day
- June 19, 1970 Patent Cooperation Treaty
- June 17, 1972 – August 9, 1974 Watergate scandal
- January 22, 1973 Roe v. Wade
- March 3, 1973 CITES
- March 26, 1979 Egypt–Israel peace treaty
- April 10, 1979 Taiwan Relations Act
- March 30, 1981 Attempted assassination of Ronald Reagan
- January 13, 1982 Air Florida Flight 90
- August 20, 1985 – March 4, 1987 Iran–Contra affair
- December 8, 1987 Intermediate-Range Nuclear Forces Treaty
- September 13, 1993 Oslo I Accord
- January 1, 1994 – July 1, 2020 North American Free Trade Agreement
- March 18, 1994 Washington Agreement
- September 11, 2001 War on terror
- September 18 – October 9, 2001 2001 anthrax attacks
- November 4, 2008 2008 United States presidential election
- November 14–15, 2008 2008 G20 Washington summit
- September 16, 2013 Washington Navy Yard shooting
- June 26, 2015 Obergefell v. Hodges
- November 8, 2016 2016 United States presidential election
- January 21, 2017 2017 Women's March
- March 24, 2018 – June 11, 2022 March for Our Lives
- September 15, 2020 Israel–United Arab Emirates normalization agreement
- September 15, 2020 Bahrain–Israel normalization agreement
- November 3, 2020 2020 United States presidential election
- January 6, 2021 January 6 United States Capitol attack
- July 9–11, 2024 2024 Washington NATO summit
- November 5, 2024 2024 United States presidential election
- January 29, 2025 2025 Potomac River mid-air collision
- February 28, 2025 2025 Trump–Zelenskyy Oval Office meeting