23 April

History of Doctor Who

 * 1904 - Leslie French born
 * 1922 - Jack May born
 * 1966 - "The Final Test" First Broadcast (The Celestial Toymaker Episode 4)
 * 1975 - William Hartnell dies
 * 2005 - World War Three First Broadcast

22nd April April dates 23rd April 24th April