Portal:United States/Anniversaries/August/August 30
- 1800 – Gabriel Prosser postpones a planned slave rebellion in Richmond, Virginia, but is arrested before he can make it happen.
- 1813 – Creek War: Fort Mims massacre: Creek "Red Sticks" kill over 500 settlers (including over 250 armed militia) in Fort Mims, north of Mobile, Alabama.
- 1836 – The city of Houston is founded by Augustus Chapman Allen and John Kirby Allen.
- 1963 – The Moscow–Washington hotline between the leaders of the U.S. and the Soviet Union goes into operation.
- 1967 – Thurgood Marshall is confirmed as the first African American Justice of the Supreme Court of the United States.
- 2021 – The last remaining American troops leave Afghanistan, ending U.S. involvement in the war.