- 1789 – Congress passes the Judiciary Act, creating the office of the Attorney General and the federal judiciary system.
- 1846 – General Zachary Taylor captures Monterrey during the Mexican-American War.
- 1869 – Gold prices plummet after President Ulysses S. Grant orders the Treasury to sell large quantities of gold after Jay Gould and James Fisk plot to control the market.
- 1890 – The Church of Jesus Christ of Latter Day Saints officially renounces polygamy.
- 1906 – President Theodore Roosevelt proclaims Devils Tower in Wyoming as the nation’s first National Monument.
- 1957 – President Dwight D. Eisenhower sends the 101st Airborne Division to Little Rock Arkansas to enforce desegregation.
- 1996 – Representatives of 71 nations sign the Comprehensive Nuclear-Test-Ban Treaty.
