13 October 1923: birth of Cyril Shaps, who played Viner in The Tomb of the Cybermen (1967), Lennox in The Ambassadors of Death (1970), Professor Clegg in Planet of the Spiders (1974) and the Archimandrite in The Androids of Tara (1978)
13 October 1997: death of Ian Stuart Black, author of The Savages (1966), The War Machines (1966) and The Macra Terror (1967).
ii) broadcast anniversaries
13 October 1979: broadcast of third episode of City of Death. The Doctor goes back to Leonardo's studio; and poor old professor Kerensky meets his end.
13 October 2008: broadcast of second episode of Day of the Clown. Clyde defeats the bad guy by telling jokes, and Rani accepts Sarah's invitation to join her team.