2000s

On Earth, the 2000s, or the 00s were the first decade of the 21st century.

Doctor Who universe
The 2000s brought an increasing number of widely seen alien encounters. This led to widespread knowledge of alien life.

Key events

 * Attack of the Autons. (DW: Rose)
 * The Slitheen incursion although considered a hoax. (DW: Aliens of London/World War Three)
 * The poisoned rain of the future Cybermen (The Flood)
 * The threat of magnetic inversion of Earth, and the Cybermen invasion of the South Pole. (Iceberg)
 * The Sycorax invasion. (DW: The Christmas Invasion)
 * The Battle of Canary Wharf. (DW: Army of Ghosts/Doomsday)
 * The Webstar Christmas incident. (DW: The Runaway Bride)
 * The abduction of the Royal Hope Hospital to the Moon by the Judoon. (DW: Smith and Jones)
 * The (Mondasain) Cybermen attack from Lonsis, via the portal in the main branch of Hulbert Longistics. (Human Resources)
 * The Cardiff Rift crisis. (TW: End of Days)
 * The Toclafane invasion in the Year That Never Was. (DW: The Sound of Drums/Last of the Time Lords)
 * The interference of the Atraxi. (DW: The Eleventh Hour)
 * The near crash of the Titanic on Buckingham Palace. (DW: Voyage of the Damned)
 * The exdous of the Adipose. (DW: Partners in Crime)
 * ATMOS incident. (DW: The Sontaran Stratagem/The Poison Sky)
 * The brushfire attacks on Cardiff by Gray and John Hart. (TW: Exit Wounds)
 * The relocation of the Earth to the Medusa Cascade, coupled with a Dalek invasion of the planet. (DW: The Stolen Earth/Journey's End)
 * The attempted enslavement of Humanity by Martin Trueman through the Ancient Lights. (SJA: Secrets of the Stars)
 * The 456 incident. (TW: Children of Earth)
 * The realese of the Rakweed in London. (SJA: The Gift)
 * Humanity was transformed into the Master Race and Gallifrey appeared over the Earth, which caused panic amongst Humanity. (DW: The End of Time)
 * The Universe ends in a Alternate timeline, with the Earth being in the "eye of the storm". (DW: The Pandorica Opens/The Big Bang)

The Doctor's involvement
However the Human race remained oblivious to the Doctor's successful efforts to protect the world, who, with his companions' help, beat back each of these alien invasions (excluding The 456 incident, which the Doctor was not present for). (TW: Children of Earth)

Other information

 * The first half of the decade, Earth was largely left alone from alien attacks. (DW: Rose)
 * Suicide rates doubled following the public revelation of alien life. (TW: Children of Earth: Day One)
 * The Kulan invasion. (EDA: Escape Velocity)
 * Events of Siberia leading to the creation of multiples alternate universes. Sabbath attempted to create a living black hole, so as to send it to the Event Zero. (EDA: Time Zero)
 * Sabbath attempted to make Guy d'Amantine a living host for the diamonds, which will become the Council of Eight in the first place. (EDA: Timeless)
 * The Doctor, Fitz and Trix, with unexpected help from Miranda, Zezanne and Sabbath, fought the Council of Eight and its agents at London. (EDA: Sometime Never...)

Real world

 * The first half of the decade saw several "false alarms" of new Doctor Who TV and film productions.
 * Meanwhile, BBC Books continued its prolific lines of Doctor Who novels.
 * Telos Publishing obtained the licence to produce original novellas based upon Doctor Who.
 * Bernice Summerfield, no longer the star of her own Virgin Publishing novels, becomes featured in numerous novels, short stories and audio dramas produced by Big Finish.
 * The BBC experiments with new media, producing several Doctor Who webcasts consisting of original stories featuring original series cast members. In 2003, a webcast entitled Scream of the Shalka introduces Richard E. Grant as the voice of the Ninth Doctor.
 * In late 2003, BBC Wales announces that it will be producing a new live-action Doctor Who series, with Christopher Eccleston as the Ninth Doctor (the Richard Grant version of the character is abandoned). The series debuts in the spring of 2005 and almost instantly reinstates Doctor Who as a national institution.
 * BBC Books discontinues its line of Eighth Doctor and Past Doctor novels in favor of a new line of hardcover fiction featuring the Ninth (and later the Tenth) Doctor.
 * Big Finish obtains the licence to publish the Short Trips book series.
 * After one season, Eccleston leaves Doctor Who and David Tennant is introduced as the Tenth Doctor.
 * Two spin-off series are launched: Torchwood and The Sarah Jane Adventures.
 * In 2008, Tennant announces his departure from Doctor Who. Matt Smith, a largely unknown actor is cast as the Eleventh Doctor at the age of 26; he later debuts in 2010.
 * After four extremely successful seasons under the watch of Russell T Davies, Doctor Who goes on partial hiatus for 2009, producing a number of specials in lieu of a full season. This is to allow Davies to hand over production duties to Steven Moffat, and also pave the way for Tennant's departure.