28 February

On February 28 1981, the Fourth Doctor and Adric landed the TARDIS by the side of a motorway to measure a police box. Air hostess Tegan Jovanka stumbled aboard the TARDIS on her way to work at London's Heathrow Airport. The Doctor later confronted confronted one another on the Pharos Project. The Doctor slipped and fell, and then regenerated into his fifth incarnation. (TV: Logopolis, PROSE: Divided Loyalties)

The TARDIS instead landed on a space ship, where the Fifth Doctor and Adric find Urbankans and human androids. The Doctor saved the Earth from the leader of the Urbankans, Monarch, who had planned to poison Humanity in order to steal equipment needed to travel in time. Having decided they would no longer have any place on Earth, the androids decided to pilot the ship to a new world and continue their lives there. (TV: Four to Doomsday)

Behind the scenes

 * 1912 - Associate producer and director Mervyn Pinfield was born.
 * 1927 - Actor John Carson was born.
 * 1942 - Actor Robin Phillips was born.
 * 1968 - Production Assistant Patrick Stark was born.
 * 1969 - Composer Murray Gold was born.
 * 1970 - Episode five of Doctor Who and the Silurians was first broadcast on BBC1.
 * 1970 - Part one of TV Comic story The Multi-Mobile was first released in issue nine hundred and fifty.
 * 1976 - Part five of The Seeds of Doom was first broadcast on BBC1.
 * 1981 - Part one of Logopolis was first broadcast on BBC1.
 * 2008 - Novel Revenge of the Judoon was first published by Quick Reads.
 * 2009 - Big Finish audio story The Destroyer of Delights was first released.
 * 2010 - Big Finish audio stories The Hollows of Time, Survival of the Fittest and Klein's Story were first released.
 * 2011 - Short Trips: Volume 2 was first released by Big Finish Productions.
 * 2013 - COMIC: Prisoners of Time issue 2 was released on iTunes.