1 April

1 April was celebrated on Earth as April Fools' Day.

On 1 April 1963, Ian Chesterton sent one of his Coal Hill School students, Little Titch Critchley, to the supplies cupboard for "a left-handed blackboard rubber". Later that morning, Ian started a snowball fight with Mr Okehurst, shouting, "April fool!" That afternoon, when John Brent tried to tell his father about the snowmen which had been animated by the Cold, Captain Brent thought his son was playing an April Fools' joke. (PROSE: Time and Relative)

On 1 April 1939, the Spanish Civil War, which began in 1936, ended. (PROSE: History 101)

Behind the scenes

 * 1917 - Doctor Who creator Sydney Newman was born.
 * 1926 - Dalek Operator John Scott Martin was born.
 * 1931 - Actor George Baker was born.
 * 1960 - Actor Michael Praed was born.
 * 1964 - Actor Marcus Hutton was born.
 * 1967 - Episode four of The Macra Terror was first broadcast on BBC1.
 * 1967 - Part three of TV Comic story The Zombies was first released in issue seven hundred and ninety-eight.
 * 1972 - Episode six of The Sea Devils was first broadcast on BBC1.
 * 1978 - Part two of TV Comic story The Eerie Manor was first released in issue 1372.
 * 1978 - Actors JJ Feild and Anamaria Marinca were born.
 * 2001 - Recording for Big Finish audio story Bloodtide completed.
 * 2002 - The Tomb of the Cybermen was released on Region 4 DVD.
 * 2007 - Actor George Sewell died.
 * 2007 - Issue sixty-seven of Doctor Who: Battles in Time, including comic story The Guardians of Terror, was first released by GE Fabbri Ltd.
 * 2008 - Timelash and The Time Warrior were released on Region 1 DVD.
 * 2009 - As an April Fool's joke, word circulated around the Doctor Who set that Michael Jackson was paying a visit. A serious announcement was also made, though — Planet of the Dead would be broadcast on 11 April.
 * 2009 - Part one of Big Finish podcast Last of the Titans was first released.
 * 2010 - The Doctor Who Adventures magazine underwent a relaunch to introduce the new Eleventh Doctor-era branding and new editorial features.
 * 2010 - Guinness World Records recognised Doctor Who Magazine, which had celebrated its thirtieth anniversary in 2009, as the Longest Running Magazine Based on a Television Series.
 * 2010 - The Masque of Mandragora was released on Region 4 DVD.
 * 2013 - Destiny of the Doctor audio story Babblesphere was first released for download by Big Finish Productions.