October 18: Alaska Day; Feast day of Saint Luke.
- 1009: The Church of the Holy Sepulchre, a Christian church now within the walled Old City of Jerusalem, was destroyed by the "mad" Fatimid caliph Al-Hakim bi-Amr Allah.
- 1851: Moby-Dick, a novel by Herman Melville (pictured), was first published, as The Whale.
- 1922: The British Broadcasting Company was founded by a consortium to establish a network of radio transmitters to provide a national broadcasting service in the United Kingdom.
- 1954: Texas Instruments introduced the first transistor radio.
- 1977: Various Red Army Faction members died in prison, officially by suicide, ending the German Autumn crisis.
Recent days: October 17 – October 16 – October 15
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