27 April

History of Doctor Who

 * 1911 - Colin Gordon was born.
 * 1912 - Zohra Sehgal was born.
 * 1956 - Kevin McNally was born.
 * 1963 - Russell T Davies was born.
 * 1968 - Episode 1 of DW: The Wheel in Space was first broadcast.
 * 1974 - Part 6 of DW: The Monster of Peladon was first broadcast.