Theory:Timeline - Kate Stewart

This page lists appearances of the Kate Stewart in the order in which she experienced them. This timeline is based upon observations of the Doctor Who universe and the events that occur during each of these stories. From these observations we have attempted to build a concise timeline. It is assumed, much like its TV story counterparts that for each novel or audio series their published/numbered order is the order they occur in. This does not apply to short stories which are often ambiguous about their placement. There are also many gaps between stories.

The layout of this timeline is in part based on the observations on Doctor Who Reference Guide and Doctor Who - The Complete Adventures, as well as Lance Parkin's AHistory and other sources that allow us to make observations, such as The Whoniverse, Doctor Who Reviews, The History of Doctor Who, The Discontinuity Guide, Clive Banks databanks, and The Divergent Universe forum. None of these sources should be used solely as a source or considered a "true" timeline for stories.

Early life

 * 1973 or 1974 - PROSE: Ashes of the Inferno
 * The events of The Schizoid Earth are almost five years ago. The Brigadier is married to Fiona and Kate has been born.


 * 1970s - PROSE: The Scales of Injustice
 * Kate is five years old.


 * 1990 - PROSE: Of the Future


 * 1995 - HOMEVID: Downtime / PROSE: Downtime


 * 2003 - HOMEVID: Dæmos Rising


 * 2004 - PROSE:  Child of the New World

UNIT career

 * PROSE: Acceptance, and then Understanding
 * Set in December 2011.


 * PROSE: Lucy Wilson and the Bledoe Cadets
 * Set on Friday 11th December 2011. Kate visits her father on the night he passed away and later attends his funeral in January 2012.


 * 2010s - TV: The Power of Three
 * Kate meets the Doctor for the first time, in his eleventh incarnation.


 * PROSE: For the Girl Who Has Everything
 * Set during Christmas-time. Osgood hasn’t started working for Kate now, and they have only met on one previous occasion.

Extinction

 * AUDIO: Vanguard
 * Set between The Power of Three and The Day of the Doctor.


 * AUDIO: Earthfall


 * AUDIO: Bridgehead


 * AUDIO: Armageddon

Shutdown

 * AUDIO: Power Cell


 * AUDIO: Death in Geneva


 * AUDIO: The Battle of the Tower


 * AUDIO: Ice Station Alpha

Silenced

 * AUDIO: House of Silents


 * AUDIO: Square One


 * AUDIO: Silent Majority


 * AUDIO: In Memory Alone

Assembled

 * AUDIO: Call to Arms


 * AUDIO: Tidal Wave


 * AUDIO: Retrieval


 * AUDIO: United

Encounters

 * AUDIO: The Dalek Transaction


 * AUDIO: Invocation


 * AUDIO: The Sontaran Project


 * AUDIO: False Negative

Cyber-Reality

 * AUDIO: Game Theory
 * Set directly after False Negative. A few months have passed since The Dalek Transaction.


 * AUDIO: Telepresence
 * Set shortly after Game Theory.


 * AUDIO: Code Silver
 * Set directly after Telepresence.


 * AUDIO: Master of Worlds
 * Set directly after Code Silver.

Revisitations

 * AUDIO: Hosts of the Wirrn
 * Set directly after Master of Worlds.


 * AUDIO: Breach of Trust


 * AUDIO: Open the Box

Incursions

 * AUDIO: This Sleep of Death


 * AUDIO: Tempest


 * AUDIO: The Sacrifice of Jo Grant
 * Osgood creates a crude chronon wave tracker and the Doctor later perfects this device, and leaves it for UNIT should they ever need to use it again, setting this before The Power of River Song.


 * AUDIO: The Power of River Song
 * UNIT have a fully functioning chronon wave tracker, setting this after The Sacrifice of Jo Grant. Kate meets River Song for the first time.

Operation Double

 * TV: The Day of the Doctor
 * Kate summons the Eleventh Doctor and Clara to investigate the mystery at the Under-Gallery. There is a photo of Kate with River Song in the Black Archive, setting this after The Power of River Song.


 * COMIC: The Fractures
 * Osgood is mentioned to have started wearing a bowtie but has not met the Twelfth Doctor, placing this story before she meets him in Death in Heaven.


 * TV: Death in Heaven
 * Kate encounters Missy for the first time, who kills one of the Osgoods.

Nemesis

 * AUDIO: The Enemy Beyond
 * Kate recalls her encounter with Missy, setting this after Death in Heaven.


 * AUDIO: Fire and Ice


 * AUDIO: Eleven's Eleven


 * AUDIO: The Curator's Gambit
 * Kate recalls the events of The Day of the Doctor.


 * AUDIO: The Man From Gallifrey
 * Three months have passed since UNIT took the Eleven into custody in The Curator's Gambit.


 * AUDIO: Power of the Dominators


 * AUDIO: The War Factory


 * AUDIO: Ten Minutes in Hell

Working without Osgood

 * COMIC: Empire's Fall


 * COMIC: The Hyperion Empire
 * Set in Summer 2015, before The Magician's Apprentice.


 * TV: The Magician's Apprentice
 * Kate now has Jac as her scientific advisor.

Operation Double Part Two

 * TV: The Zygon Invasion
 * Set two years after The Day of the Doctor.


 * TV: The Zygon Inversion
 * Set directly after The Zygon Invasion. Osgood returns to Kate at UNIT with her new double.


 * COMIC: Clara Oswald and the School of Death
 * Set in September 2015. There are two Osgoods working for UNIT, setting this after The Zygon Inversion.


 * AUDIO: Narcissus
 * Set in March of an unspecified year. There are two Osgoods and UNIT have lost one before, setting this after The Zygon Inversion.


 * COMIC: The Lost Dimension
 * Kate, Osgood, and UNIT investigate the spaceship crash at St Luke's University during the Doctor's time with Bill.


 * COMIC: Tulpa
 * Kate and Bill are already familiar with each other, placing this after The Lost Dimension.

Defunded

 * TV: Survivors of the Flux
 * In 2017, Kate meets with Prentis to discuss his decision to accept the withdrawal of funding for UNIT. Figuring out that he is an extraterrestrial threat, she opposes him. After narrowly escaping an assassination attempt, Kate is forced to go on the run.


 * WC: Farewell, Sarah Jane
 * Kate attends Sarah Jane's funeral.


 * WC: 14684 UNIT Field Log
 * In August 2020, Kate investigates the Time Fracture. She mentions that she is the former chief of operations at UNIT.


 * TV: The Vanquishers
 * On 5 December 2021, Kate meets the Thirteenth Doctor for the first time while leading the resistance force against the Sontaran occupation.