The Partial Nuclear Test Ban Treaty, which prohibits all test detonations of nuclear weapons except for those conducted underground, went into effect.
In the first proven act of sabotage in the history of commercial aviation, a Boeing 247 operated by United Airlines exploded in mid-air near Chesterton, Indiana, killing all seven people aboard.
English astronomer William Lassell discovered Triton, the largest moon of Neptune.
Husayn ibn Ali, a grandson of Muhammad, was killed at the Battle of Karbala by the forces of Yazid I, whom Husayn had refused to recognize as caliph.
After 20 years of construction, Vidyasagar Setu (pictured), the longest cable-stayed bridge in India, opened, joining Kolkata and Howrah.
Sri Lankan Civil War: The Indian Peace Keeping Force began Operation Pawan to take control of Jaffna from the Tamil Tigers and enforce their disarmament as a part of the Indo-Sri Lanka Accord.
Many blame this to be the turning point t...
