1998

Doctor Who Universe

 * The Doctor and Sarah Jane Smith prevent the Voracian invasion of Earth. (MA: System Shock)

October

 * 12 - Thomas Hector Schofield is born. (BFA: The Harvest)

January

 * BNA: Tempest is first published.
 * 05 - EDA: Kursaal is first published.
 * PDA: The Face of the Enemy is first published. Although published as a Past Doctors Adventure, this book actually focuses on The Master.

February

 * BNA: Walking to Babylon is first published.
 * 02 - EDA: Option Lock is first published.
 * PDA: Eye of Heaven is first published. First BBC Past Doctor Adventures novel to feature the Fourth Doctor.
 * 05 - Wilfred Carter, who played politician-cum-peacemaker Sir Reginald Styles in DW: Day of the Daleks dies.

March

 * BNA: Oblivion is first published.
 * 02 - EDA: Longest Day is first published.
 * PDA: The Witch Hunters is first published. First BBC Past Doctor Adventures novel to feature the First Doctor.
 * 03 - ST: Short Trips is first published. This is the first of three volumes of short stories (similar to Decalog) published by BBC Books, and the first of dozens of Short Trips collections published over the next decade.

April

 * BNA: The Medusa Effect is first published.
 * 06 - EDA: Legacy of the Daleks is first published. The novel features the return of Susan Foreman.
 * PDA: The Hollow Men is first published.

May

 * BNA: Dry Pilgrimage is first published.
 * BBV: Republica, BBV: Island of Lost Souls, and BBV: Prosperity Island, the first episodes in a new audio drama series called The Time Travellers (also known as Audio Adventures in Time and Space) are first released. The series stars Sylvester McCoy as "The Professor" and Sophie Aldred as "Ace" (later, the characters would be more explicitly separated from their TV counterparts).
 * 04 - EDA: Dreamstone Moon is first published.
 * PDA: Catastrophea is first published.
 * 10 - Robert Jewell, who operated Daleks in several episodes of Doctor Who as well as in both of the Dalek films starring Peter Cushing, dies in Melbourne, Australia.

June

 * BNA: The Sword of Forever is first published. Final monthly release in the Virgin Bernice Summerfield New Adventures line; hereafter the frequency of releases is reduced.
 * 01 - EDA: Seeing I is first published.
 * PDA: Mission: Impractical is first published.
 * 24 - Stuntman Ken Barker, who appeared as the Mutant in DW: Revelation of the Daleks, dies from prostate cancer.

July

 * BBV: The Left Hand of Darkness is first released. First of two "Professor-lite" audio dramas in The Time Travellers series, focusing on the character of Ace. The two releases are notable for their somewhat racy cover photos of Sophie Aldred.
 * 06 - EDA: Placebo Effect is first published.
 * PDA: Zeta Major is first published.
 * 21 - Kenneth Watson, who portrayed Craddock in Daleks - Invasion Earth 2150 AD and Bill Duggan in DW: The Wheel in Space dies from pancreatic cancer.

August

 * BNA: Another Girl, Another Planet is first published.
 * 03 - EDA: Vanderdeken's Children is first published.
 * PDA: Dreams of Empire is first published.
 * 11 - Derek Newark, who portrayed Za in DW: An Unearthly Child and Greg Sutton in DW: Inferno, dies.

September

 * BFBS: Oh No it Isn't, a dramatized audio adaptation of the 1997 novel of the same title, is released by Big Finish. This was the first of a series of Bernice Summerfield audio dramas to be produced by Big Finish, and was also the production company's first official production related to the Doctor Who franchise; a year later, the company would begin publishing dramas with a more direct connection to the TV series, and continue a prolific slate of productions into 2009. Many of those involved in these ventures would go on to write or perform for Doctor Who when it returns to TV in 2005.
 * BBV: The Other Side is first released. Second of two "Professor-lite" episodes of The Time Travellers series.
 * 07 - EDA: The Scarlet Empress is first published.
 * PDA: Last Man Running is first published.
 * 10 - Carl Forgione, who appeared as Land in DW: Planet of the Spiders and Nimrod in DW: Ghost Light, dies from cancer.
 * 30 - Marius Goring, known for his role as the villianous Theodore Maxtible in DW: The Evil of the Daleks dies from cancer.

October

 * BNA: Beige Planet Mars is first published.
 * 05 - EDA: The Janus Conjunction is first published.
 * PDA: Matrix is first published.
 * REF: Doctor Who: The Television Companion is first published.
 * 06 - Paperback publication of Tom Baker's autobiography, REF: Who on Earth is Tom Baker?.
 * 19 - Future Doctor Who co-star Billie Piper (at this time promoted only as "Billie") releases her first album, Honey to the B, which sparked several hit singles, including the title track which would become a hit again in 2007.

November

 * CP: Perfect Timing, a Doctor Who short story collection for charity, is first published.
 * BBV: Guests for the Night is first released. This was the last entry in The Time Travellers series in which Sylvester McCoy's character was referred to as "The Professor" and was considered the Doctor in all but name; similarly, this is the last episode in which Sophie Aldred's character is called Ace.
 * 2 - Tommy Duggan (Senator Alcott in DW: The Mind of Evil) dies.
 * 16 - EDA: Beltempest is first published.
 * PDA: The Infinity Doctors is first published. Promoted as celebrating the 35th anniversary of Doctor Who, this novel features an unspecified incarnation of the Doctor, and reinstates elements of the Doctor's continuity (see Cartmel Masterplan) from the Virgin New Adventures books.
 * REF: Doctor Who from A to Z is first published.
 * 19 - REF: Five Rounds Rapid!, a biography of Nicholas Courtney edited by John Nathan-Turner, is first published.
 * REF: Doctor Who - The Handbook: The Seventh Doctor is first published. This concludes a series of Handbooks that began in 1992; this volume also includes information on the Eighth Doctor and an index to all seven volumes.
 * 23 - 35th anniversary of the first episode of Doctor Who being broadcast.

December

 * BNA: Where Angels Fear is first published.
 * BBV: Cyber-Hunt is first released, a continuation of the Audio Adventures in Time and Space line featuring Nicholas Briggs as a new character, The Wanderer. Also appearing: the Cyberons.
 * 7 - Michael Craze, who played companion Ben Jackson during the Patrick Troughton era, dies from a heart attack at his home.
 * 20 - "Mayored to the Mob," an episode of the American series The Simpsons, broadcast. The episode includes a cameo appearance by a caricature of the Fourth Doctor in a scene set at a science fiction convention.
 * 21 - Roger Avon, who played Saphadin in DW: The Crusade and Daxtar in DW: The Daleks' Master Plan, as well as Wells in Daleks - Invasion Earth 2150 AD, dies.