49th century The 49th century was home to the Time Agency . ( PROSE : " Eater of Wasps " , " Trading Futures " ) It was an era of peace and prosperity on Earth , ( PROSE : " Trading Futures " ) although one account indicated that World War V happened at some point during this century . ( AUDIO : " Singularity " ) The Tenth Doctor thought of this century as a period of human history when " everyone was off exploring the unknown " . ( AUDIO : " Death ' s Deal " ) A member of Faction Paradox once suggested that the Doctor was originally a human from the 49th century who began travelling in time and space in order to flee from an Enemy who had overrun his home , but that the Doctor ' s biodata was then overwritten with a multitude of different origins which supplanted this version of history . ( PROSE : " Unnatural History " ) After he was stripped of his memories of the Time Lord s and Gallifrey , the Eighth Doctor theorised that he may have been an exile from the 49th century . ( PROSE : " Escape Velocity " ) During the War , the enemy once launched an assault on the 49th century which Robert Scarratt helped to counter . ( PROSE : " The Brakespeare Voyage " ) Earth ' s moon was terraform ed to have an atmosphere . ( PROSE : " Trading Futures " ) One area of the Moon wasn ' t explored by humans until this century ; the Tenth Doctor and Rose Tyler once considered leaving a Women ' s Institute flag there to confuse 49th century historians . ( PROSE : " I Am a Dalek " ) Humans terraform ed Alfava Metraxis and began to settle the planet . Over the next two centuries its population grew to six billion . ( TV : " The Time of Angels " ) The Hokrala Corp was active . ( PROSE : " The Undertaker ' s Gift " ) Refugees who came from a dying world in this century projected their consciousness es through time and made contact with a spiritualist named Mrs Vanguard in the 1890s , passing themselves off as ghost s . They planned to transfer their consciousnesses into the bodies of influential people in 1890s London with their ultimate goal to take control of Queen Victoria . From the historical records , they were aware that she was still in mourning for her long dead husband Prince Albert . The refugee possessing the body of Henry Gordon Jago mentioned that , in decades to come , there would be " brutal , terrible wars that will decide the fate of this world . " With one of their kind possessing Queen Victoria ' s body , they intended to " turn the tides of history " and create a new future , thereby preventing the destruction of their world . Their plan was defeated by Jago , Professor George Litefoot , Ellie Higson and Toby . ( AUDIO : " The Spirit Trap " ) El Diablo was colonised by humans near the end of the century . ( PROSE : " Big Bang Generation " ) For two days in this century , the Great Crystal Choir Crown of Pseudolonica VII was left unguarded . In this time , the Fourth Doctor stole it to give as a Christmas gift to Romana II . ( PROSE : " Present Tense " ) Behind the scenes . In the original " Doctor Who " pilot episode , Susan Foreman claims that she is from the 49th century . This line was not carried over into " An Unearthly Child " when it was decided that the Doctor and Susan ' s race would not be attributed to a specified time .