15 October

On 15 October 1957, the launch of Earth's first artificial satellite — named Sputnik — by the Soviet Union was reported by the BBC. (AUDIO: Unregenerate!)

In 1855, the Seventh Doctor, Ace and Bernice Summerfield visited Lifton. (COMIC: Cuckoo)

In 1915, 57 Project: Twilight test subjects escaped from the Forge Alpha Facility. (PROSE: Project: Valhalla)