27 April

27 April 1941 was the use-by date of a milk bottle that Bernice Summerfield found when she and the Seventh Doctor arrived in England. She tried to use the date to find her bearings, but the label unfortunately didn't include the year. (PROSE: Just War)

In 5145, River Song, having escaped from the Stormcage Containment Facility, stole a van Gogh painting titled The Pandorica Opens from the Royal Collection after a brief confrontation with Liz 10 (TV: The Pandorica Opens, PROSE: Time Traveller's Diary)