2020

Events

 * The Silurians emerged from their underground city around Cwmtaff, and captured local mammals, including humans. (DW: The Hungry Earth)
 * Contemporaneous versions of Amy and Rory Williams celebrated their tenth anniversary and went back to Cwmtaff, Wales to see the 2010 versions of themselves with the the Doctor. (DW: The Hungry Earth)
 * The Doctor, his companions and human allies, discover the Silurians. (DW: The Hungry Earth). Rory was killed by Restac, military leader of this group of Silurians, and absorbed by a time crack. The Silurians then went into hibernation for a millennium. (DW: Cold Blood)
 * The first lunar passenger module was developed by Daniel Eldred's father. (DW: The Seeds of Death)

Alternative timelines

 * With Rory Williams dead and his existence erased, the 2020 version of Amy Pond visits Cwmtaff to wave to the Doctor alone. (DW: Cold Blood)

Behind the scenes

 * The trailer included on the Lost in Time boxed set and press material from the time around the production of The Power of the Daleks states that The Power of the Daleks occurs in this year.