31 October

31 October was the traditional date for Halloween.

Amongst the notable things that occurred on this day were:
 * 1913 - Celia Doras died at the age of three. (PROSE: Just War)
 * 1938 - Orson Welles broadcast a radio play adaptation of H. G. Wells' novel The War of the Worlds, convincing certain members of the American population that Mars had really invaded. (AUDIO: Invaders from Mars)
 * 2008 - The Tenth Doctor and Martha Jones found an unusually creepy Halloween celebration in the New England town of Blackwood Falls. The Hervoken tried to take over that very city. (PROSE: Forever Autumn)
 * 2008 - Torchwood Three had to deal with alien predators. (PROSE: Pack Animals)

Behind the scenes

 * 1922 - Actor Talfryn Thomas was born.
 * 1934 - Actor Steve Emerson was born.
 * 1961 - Actor Moya Brady was born.
 * 1963 - Actress Sanjeev Bhaskar was born.
 * 1964 - "Planet of Giants" was first broadcast on BBC1.
 * 1979 - Issue three of Doctor Who Weekly was first published.
 * 2001 - Actress Jenny Laird died.
 * 2005 - Actress Mary Wimbush died.
 * 2006- Actor William Franklyn died.
 * 2007 - Actor Howard Attfield died halfway through the filming of Partners in Crime. He was subsequently replaced by Bernard Cribbins, who played Donna's grandfather, instead of father.
 * 2007 - Issue thirty of Doctor Who: Battles in Time, including comic story House Pests, was first released by GE Fabbri Ltd.
 * 2010 - The Newcastle Doctor Who Exhibition closed.
 * 2010 - AUDIO: A Death in the Family, Deimos, AUDIO: The Invasion of E-Space and AUDIO: Escaping the Future were first released.
 * 2011 - GAME: The Gunpowder Plot was first released.