Charles Darwin publishes The Origin of Species by Means of Natural Selection, or The Preservation of Favored Races in the Struggle for Life. The first printing of 1,250 copies sells out in a single day.
In the Battle Above the Clouds, Union Maj. Gen. Joseph Hooker's forces take Lookout Mountain, near Chattanooga, Tennessee.
Kit Carson and his 1st Cavalry, New Mexico Volunteers, attack a camp of Kiowa Indians in the First Battle of Adobe Walls.
Austria denounces Serbian gains in the Balkans; Russia and France back Serbia while Italy and Germany back Austria.
American B-29s flying from Saipan bomb Tokyo.
UN troops begin an assault into the rest of North Korea, hoping to end the Korean War by Christmas.
Jack Ruby fatally shoots the accused assassin of President Kennedy, Lee Harvey Oswald, in the garage of the Dallas Police Department.
The United States admits that thousands of troops in Vietnam were exposed to the toxic Agent Orange.
US Congress passes the Brady Bill requiring a 5-day waiting period for handgun sales; the bill is named for Pres. Ronald Reagan's press secretary who was left partially paralyzed by a bullet during an assassination attempt on Reagan.