NASA’s Explorer 49 was launched into Earth’s orbit to research long-range radio waves within the Milky Way.
Source
The last episode of David Lynch's original Twin Peaks aired.
The Great Arab Revolt against the Ottoman Empire led by Lawrence of Arabia was initiated in Mecca.
Italy declared war on France and Britain.
In London, the Millenium Bridge closed for safety checks following large crowds, which caused the bridge to start swaying.
The Opportunity Mars rover sent its last signal to Earth.
