10 (number)

10 was a number.

The Trojan War lasted for ten years. Cassandra prophecied to Odysseus that it would be ten more years before he would see his home again. (TV: The Myth Makers)

According to Jo Grant, 98 plus 10 was equal to 108. (TV: The Claws of Axos)

Aboard the Parliament of the Daleks, the Eleventh Doctor told Rory Williams that, out of ten, the amount of trouble they were in was eleven. (TV: Asylum of the Daleks) When discussing his regeneration cycle, the Doctor confirmed that he had used up all twelve regenerations, as his previous self, who he called "Number Ten", used two regenerations. (TV: The Time of the Doctor)

The Third Doctor spent ten years wandering through the Time Vortex dying of exposure to radiation on Metebelis III. (PROSE: Love and War)

The Eleventh General told the Twelfth Doctor that he was on his tenth regeneration. (TV: Hell Bent)