Events
- 1794 - Eli Whitney is granted a patent for the cotton gin.
- 1900 - The Gold Standard Act is ratified, placing United States currency on the gold standard.
- 1903 - The Hay–Herrán Treaty, granting the United States the right to build the Panama Canal, is ratified by the United States Senate. The Colombian Senate would later reject the treaty.
- 1910 - Lakeview Gusher, the largest U.S. oil well gusher near Bakersfield, California, vented to atmosphere.
- 1942 - John Bumstead and Orvan Hess became the first in the world to successfully treat a patient, Anne Miller, using penicillin.
- 1964 - A jury in Dallas finds Jack Ruby guilty of killing Lee Harvey Oswald, assassin of John F. Kennedy.
- 1967 - The body of President John F. Kennedy is moved to a permanent burial place at Arlington National Cemetery.
- 1980 - In Poland, a plane crashes during an emergency landing near Warsaw, killing 87 people, including a 14-man American boxing team.
- 1994 - Timeline of Linux development: Linux kernel version 1.0.0 is released.
- 1995 - Manned space mission: Astronaut Norman Thagard becomes the first American astronaut to ride to space on-board a Russian launch vehicle.