A calendar showing December 1986. (TV:The Tenth Planet^[+]Loading...["The Tenth Planet (TV story)"])

21 December was adate.

Holidays and observances

In thesouthern hemisphere onEarth, 21December was also known asMidsummer's Eve. (PROSE:Iceberg^[+]Loading...["Iceberg (novel)"]) In thenorthern hemisphere, it was instead thewinter solstice. WhileJohn Lennon was convinced that the date was alsoAztecsungodHuitzilopochtli'sbirthday, theSeventh Doctor dismissed him as "getting [his]mythologies meddled". (PROSE:The Left-Handed Hummingbird^[+]Loading...["The Left-Handed Hummingbird (novel)"])

Events

In350 million BC, theIsop andGrem galaxies collided and formed theSilver Devastation. (PROSE:Time Traveller's Diary^[+]Loading...["Time Traveller's Diary (novel)"])

In1956, theracial segregation ofbuses ended inMontgomery,Alabama, as a result of theMontgomery Bus Boycott. (TV:Rosa^[+]Loading...["Rosa (TV story)"])

In1981, theHecate Cult intended tosacrificeBrendan Richards inMoreton Harwood. However, he was rescued bySarah Jane Smith andK9 Mark III before this could happen. (TV:A Girl's Best Friend^[+]Loading...["A Girl's Best Friend (TV story)"])

In2010, it was the date of an unknownTorchwood Three operation. The date was in bothCaptainJack Harkness' andGwen Cooper'sCIA files, detailing the figures of a "case" numbered "00938478766-04". (TV:The New World^[+]Loading...["The New World (TV story)"])

Other

According to acalendar on theSnowcap base, 21 December1986 was aSunday. (TV:The Tenth Planet^[+]Loading...["The Tenth Planet (TV story)"])