1 March

On 1 March 1981, the Fourth Doctor regenerated. He had thwarted the plans of to use CVEs to control the universe. (TV: Logopolis) Adric, Nyssa, and Tegan helped the newly-regenerated Fifth Doctor escape awkward questions by the police. (TV: Castrovalva)

In 1562, twenty-five Huguenots were killed in Wassy, France. The resulting French religious wars culminated in the St Bartholomew's Day massacre on 24 August 1572. (TV: The Massacre, PROSE: The Massacre)

In 1941, the Seventh Doctor noted that changes were happening to the timeline of Nazi Germany. He, Benny, Chris and Roz Forrester attempted to set history on its correct course. Just before midnight that night, aircraft Hugin blew up in St Jaonnet, Guernsey. (PROSE: Just War)