- You may be looking for Natural timeline.
One account of Skaro's history referred to an original timeline prior to another created by the Fourth Doctor's interference. (PROSE: Whotopia: The Ultimate Guide to the Whoniverse [+]Loading...["Whotopia: The Ultimate Guide to the Whoniverse (reference book)"])
According to some accounts, the universe existed as a single linear timeline before the invention of time travel made it the original palimpsest universe. (PROSE: The Infinity Doctors [+]Loading...["The Infinity Doctors (novel)"], Mr Saldaamir [+]Loading...["Mr Saldaamir (short story)"]) A Faction Paradox member speculated that in the original version of history, the Doctor came from a planet in the 49th century, fleeing the Enemy who had overrun his home. (PROSE: Unnatural History [+]Loading...["Unnatural History (novel)"])