53rd century

In the 53rd century, the Daleks, led by the Dalek Supreme, seized control of the Cauldron. The Threshold, having been hired by Rassilon and his fellow High Evolutionaries, opposed them, but failed at the last minute. The Eighth Doctor and his companion Izzy Sinclair were able to close the wormhole, while the Daleks were destroyed by a swarm of Daleks from a parallel universe. (COMIC: Fire and Brimstone)

The Fifth Doctor intended to take Adric, Nyssa and Tegan Jovanka to Gallius Ultima in this century but they instead arrived in the 54th century. (AUDIO: The Star Men)