2000

January

 * 1 - The Doctor leaves San Francisco, Earth after preventing the Master from destroying the planet at the start of the last year of the millennium. Grace Holloway declines an invitation to travel with him. (DW: Doctor Who)

Spring

 * The Doctor and Romana visit Paris (IDW: The Forgotten), much to Romana's chagrin as they had only just visited the city, albeit 20 years earlier. (DW: City of Death)

August
15th August - Events of BFA: The Shadow of the Scourge.

December

 * 25 - A year prior to this date, the Eighth Doctor warns Chang Lee not to be in San Francisco for Christmas 2000, suggesting knowledge of an event due to take place at this time. The Doctor recommends Chang Lee "take a vacation" on this date, but it's not known if he followed his advice. (DW: Doctor Who)
 * 31st December, end of the 20th century.

Unknown date

 * Sometime after the departure of the Doctor, Grace Holloway discovers residue left over from her encounter with the Master. Seeking out the possibility of developing a Human/Time Lord hybrid capable of regeneration, she begins working for a genetics lab (later she learns she's actually working for a branch of MI6). (DWM: The Glorious Dead)
 * One account claims that it was during the year 2000 that the First Doctor regenerated rather than 1986. (DWN: Doctor Who and the Tenth Planet)

January

 * Parallel 59 First Published


 * Last of the Gaderene First Published


 * The Land of the Dead First Released


 * Donald Cotton, who wrote The Myth Makers and The Gunfighters dies.


 * 13 - Eric Dodson, who portrayed the role of the headman in The Visitation, dies.

February

 * The Shadows of Avalon First Published


 * Tomb of Valdemar First Published


 * The Fearmonger First Released


 * 1 - Reginald Jessup, who played a servant in The Massacre of St Bartholomew's Eve and Lord Savar in The Invasion of Time dies.

March

 * The Fall of Yquatine First Published


 * Short Trips and Side Steps First Published


 * The Marian Conspiracy First Released

April

 * Coldheart First Published


 * Verdigris First Published


 * Dalek Empire: The Genocide Machine First Released

May

 * The Space Age First Published


 * Grave Matter First Published


 * Red Dawn First Released


 * 15 - Publication of Jon Pertwee: The Biography by Bernard Bale.

June

 * The Banquo Legacy First Published


 * Heart of TARDIS First Published


 * The Spectre of Lanyon Moor First Released


 * Tales of the Solar System, a Doctor Who short story collection for charity, first published.


 * The Pocket Essential Doctor Who first published.


 * 18 - Derek Sydney, who played Sevcheria in "The Romans," dies from a heart attack in San Marcos, California.


 * 28 - David Neal (The President in The Caves of Androzani) dies from natural causes.


 * 29 - John Abineri, who had roles in Fury from the Deep, The Ambassadors of Death, Death to the Daleks and The Power of Kroll dies from motor neurone disease.

July

 * The Ancestor Cell First Published


 * Prime Time First Published


 * Winter for the Adept First Released


 * 11 - Roy Purcell (Chief Prison Officer Powers in The Mind of Evil and the President of the Council in The Three Doctors) dies as a result of complications from an operation.

August

 * The Burning First Published


 * Imperial Moon First Published


 * Dalek Empire: The Apocalypse Element First Released

September

 * Casualties of War First Published


 * Festival of Death First Published


 * The Fires of Vulcan First Released


 * The Dead Men Diaries First Published, returning Bernice Summerfield to the literary arena and launching the Big Finish Bernice Summerfield Series series of books. This is the first of numerous Summerfield short story collections.


 * Mary Ridge, who directed Terminus dies.


 * Englightenment, the magazine published by the Canadian fan club, the Doctor Who Information Network, publishes its 100th issue.


 * 4 - UK release of the remastered and unedited version of An Unearthly Child on Video

October

 * The Turing Test First Published


 * Independence Day First Published


 * The Shadow of the Scourge First Released


 * Campaign, a First Doctor novel rejected for the Past Doctor Adventures line, is self-published by its author, Jim Mortimore. According to Howe's Transcendental Toybox, the book was dated May 2000, but did not begin actually circulating until October.


 * 02 - Future Doctor Who co-star Billie Piper releases her second and final album, Walk of Life. After the release of this album, Piper decides to concentrate on her acting career.


 * 14 - Lawrence Davidson, who appeared as the Draconian First Secretary in Frontier in Space dies.


 * 21 - Alan Rowe, who played numerous memorable guest roles on Doctor Who, dies.


 * 25 - Doctor Who: Regeneration first published.

November

 * Endgame First Published


 * The King of Terror First Published


 * The Holy Terror First Released


 * The Doomsday Manuscript First Published, the first full-length novel in the Big Finish Bernice Summerfield Series of books.


 * 23 - Howe's Transcendental Toybox first published.

December

 * The Mutant Phase First Released


 * Morris Barry, who directed The Moonbase, The Tomb of the Cybermen and The Dominators, as well as playing Tollund in The Creature from the Pit dies.


 * 17 - Maurice Quick, who played the Gold Usher in The Deadly Assassin dies.


 * 21 - John Lee, who portrayed Alydon in "The Daleks," dies in Melbourne, Australia.