Minyos

Minyos was the homeworld of the Minyans. In was discovered by the Time Lords early in their history, who tried to help the Minyans by giving them technology.

It was generally believed that the Minyans drove out the Time Lords, developing further technology. They eventually developed Nuclear weapons, which they used to cause a nuclear war, which destroyed the planet. (DW: Underworld) In reality, Minyos was accidentally destroyed by a Time Lord Timeonic Fusion Device. The Time Lords disseminated the civil war story as a cover. (BFG: The Inquiry)

A Minyan ship, the R1C, survive the destruction and joined together with the descendants of another Minyan ship, the P7E, to colonize another world called Minyos II. (DW: Underworld)