Apeiron was one of the six Founders of Gallifrey. His statue in the Panopticon wore spiny combat boots. (PROSE: The Infinity Doctors)

Prior to Gallifrey's destruction in the War in Heaven, many Gallifreyan youths became superstitious, joining cults devoted to historical figures such as Apeiron and Eutenoyar. Members of Apeiron's cult were called Devotees of Apeiron. (PROSE: The Ancestor Cell)

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