21 February

On 21 February 1968, the Sixth Doctor left Henry Gordon Jago and Professor George Litefoot in the Red Tavern in London, mistakenly believing that it was the 1890s. (AUDIO: Voyage to the New World)

Behind the scenes

 * 1900 - Actor Sydney Arnold was born.
 * 1924 - Actor George Selway was born.
 * 1931 - Actor Kenneth Seeger was born.
 * 1964 - Actor Huw Higginson was born.
 * 1970 - Episode four of Doctor Who and the Silurians was first broadcast on BBC1.
 * 1976 - Episode four of The Seeds of Doom was first broadcast on BBC1.
 * 1981 - Episode four of The Keeper of Traken was first broadcast on BBC1.
 * 1981 - Composer Ron Grainer, who wrote the original Doctor Who theme, died.
 * 1996 - Filming on Doctor Who, the 1996 made-for-television film, completed.
 * 2013 - Designer Raymond Cusick, who co-designed the Daleks, died.