21 November

History of the Doctor Who universe

 * 1962 - Peri Brown's parents, Janine and Paul Brown, were married. (CC: Peri and the Piscon Paradox)
 * 2059 - The Flood infected Bowie Base One; the base was later destroyed. (DW: The Waters of Mars)

History of Doctor Who

 * 1963 - The first ever Doctor Who press conference was held to launch the new show. All four lead actors and David Whitaker attended the event at BBC Langham.
 * 1964 - "World's End", Episode 1 of DW: The Dalek Invasion of Earth was first broadcast.
 * 2009 - Part 1 of DW: Dreamland was first broadcast.