This page should be merged.
It should be relocated at Far Future because the Doctor very clearly says "2 billion years or more" in The Mysterious planet.
Talk about it here or check the revision history for additional comments.
About the year 2,000,000,000, the Time Lords moved Earth light years across space, devastating its surface. It eventually became known as Ravolox. (TV: The Mysterious Planet)
The Rassilon Era took place around this time. (TV: The Ultimate Foe)