<P> At some point in their history the Time Lords interacted with the civilisation of the planet Minyos, giving them advanced technology (including the ability to "regenerate" to a limited degree, by rejuvenating their bodies when they grow too old). This met with disastrous results, (which is said by some to be the reason the Time Lords adopted a philosophy of "non-interference"). The Minyans destroyed themselves in a series of nuclear wars . </P> <P> In "Dalek" (2005), the Ninth Doctor explains that his people perished along with the Dalek race in the "Last Great Time War", leaving the Doctor the last of his race . In "The Satan Pit" (2006), the Beast identifies the Tenth Doctor as "(t) he killer of his own kind ." In "The Sound of Drums" (2007), the Master reveals he escaped the war by turning himself into a human following the Dalek Emperor taking control of the Cruciform . In The End of Time (2009--10), the Time Lords, after attempting to break out the time lock of the Time War and become creatures of consciousness, are shown being sent back into the War on the last day through the Tenth Doctor's intervention . The Master also disappears along with them . Rassilon describes Time Lord history in this story as having lasted "a billion years" up until the end of the Time War . </P> <P> In "The Day of the Doctor" (2013), thirteen incarnations of the Doctor are shown successfully attempting to freeze the Time Lords and their home world of Gallifrey in time, by transporting them to a "parallel pocket universe" using their TARDISes . Because the time streams are out of sync, the Doctor does not retain the memory of this until his eleventh incarnation . Indeed, earlier on in the episode, both the Tenth and the Eleventh Doctors mistakenly believe that the War Doctor killed all of the Time Lords on the last day of the Time War . While the plan is being outlined, the War Doctor notes that to the rest of the universe, it only appears as if the Time Lords and Daleks had mutually destroyed each other, when in fact, the Daleks had fired upon themselves in the crossfire after Gallifrey vanished, ending in the destruction of most of their own race, but not the Time Lords . In "Death in Heaven" (2014), the Master, now regenerated into a female form called "Missy", explains that when the Doctor saved Gallifrey, this caused the Doctor to save her as well . She bluffs the Twelfth Doctor into thinking that Gallifrey has returned to its original co-ordinates, but when the Doctor goes looking, he finds nothing there . </P> <P> In "Face the Raven" (2015), the immortal Ashildr makes a deal to have the Doctor's TARDIS keys and confession dial taken and to teleport the Twelfth Doctor away in exchange for her trap street's safety . In "Heaven Sent" (2015), the Twelfth Doctor escapes his confession dial and finds himself near the Citadel on Gallifrey . He tells a young child to inform the Time Lords that he knows what they have done and that he has returned "the long way around". He then tells the Time Lords through his confession dial the hybrid they fear "is me". In "Hell Bent" (2015), Gallifrey is revealed to have come back from the pocket universe it was frozen in and exist at the end of the universe . Rassilon is revealed to have been the one who had the Doctor teleported into the confession dial . </P>

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