1000 (number)

1000 was a number.

The Doctor celebrated his 1,000th birthday while travelling with Ace and Bernice Summerfield. (PROSE: Set Piece) The Eleventh Doctor commented that he was around George's age of 8 "about a thousand years ago". (TV: Night Terrors) When asked if he knew any tricks, the Doctor stated that he'd been escaping for "about a thousand years, give or take a century or so." (PROSE: Magic of the Angels) When he met Clara Oswald, he rounded his age down to 1000. (TV: The Bells of Saint John)

Following his travels with Clara, the Twelfth Doctor made an oath to guard the body of for one thousnad years. (TV: Extremis)