2004

The year 2004 briefly disappeared from history when Richard Somerset, a Time Agent, attempted to erase Maria Hackett's memory of the year after she rejected his romantic feelings for her, but instead achieved the opposite effect due to his Time Adjuster being damaged. As a result, residents of Earth in 2019, with the exception of Maria, had neither memory nor documented evidence of any event which took place in this year. The year was restored after the Thirteenth Doctor fixed Richard's adjuster. (PROSE: Time Lapse)

Its corresponding year in the Huskix Cycle was 7818. (PROSE: Time Lapse)

Yasmin Khan and Ryan Sinclair were attending primary school by this year. (PROSE: Time Lapse)

In April, the billionaire businessman Neil Redmond was left severely disabled and disfigured after a serious car accident in the south of France. (AUDIO: Uncanny Valley)

In June, Tate Modern was destroyed by an electron bomb. (PROSE: The Tomorrow Windows)

Prior to 10 October, the Serapheem migrated via Dundee and, upon hearing the local teenagers' wishes to escape, deconstructed their molecules to take them with them. However, they were left invisible and inaudible as a result. The Ninth Doctor later helped return them to normal. (AUDIO: Girl, Deconstructed)

In November, Cassandra Schofield was killed by Nimrod in the Forge's alpha facility in Dartmoor. (AUDIO: Project: Lazarus)

On 25 December, the First Doctor, Ian Chesterton, Barbara Wright and Vicki Pallister became trapped in a time loop in the home of George Smythe, his wife Patricia and his two children, Josie and Mark. (PROSE: Every Day)

On 31 December, Rose Tyler missed a New Year's Eve party. This allowed her to meet the regenerating Tenth Doctor, prior to the instance when she first encountered the Ninth Doctor, shortly after midnight. (TV: The End of Time)

Undated events
Other notable events which took place in 2004 included the Transit of Venus, Ray Charles' death, the aftermath of the Iraq War, Arsenal winning the Premier League, floods in Boscastle, and the 2004 Olympics, in which Mallika Montgomery won the silver medal in the long jump. Ian Glendennis was a BBC commentator for the games. (PROSE: Time Lapse)

Glendennis' son was also born in this year. (PROSE: Time Lapse)

Connie Winter had tickets to a Kaiser Chiefs concert but went to the wrong Newcastle. (AUDIO: A Perfect World)

Iris Wildthyme and Panda visited Manchester. (PROSE: The Shape of Things)

Clive Finch obtained a copy of a photograph taken just prior to the assassination of John F. Kennedy, featuring the image of the Ninth Doctor, from the Washington public archive. (TV: Rose)

In an alternate timeline, Ralph and Belinda were married. (AUDIO: Suburban Hell)

Elsewhere in the universe, the Battle of Ygnbnbby took place in the year 7818 of the Huskix Cycle, which corresponded with Earth year 2004. (PROSE: Time Lapse)