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From Tardis Wiki, the free Doctor Who reference
Events
History of the Doctor Who Universe
- A comet is discovered by the astronomer Clancy which returns to Earth every one hundred and fifty-seven years ("The Ghosts of N-Space").
- Erasmus Darkening is employed as a alchemist by Lord Marchwood. He makes his children and Marchwood vannish. (SJA: The Eternity Trap)