42nd century

By the 42nd century, the Second Great and Bountiful Human Empire had spread throughout three galaxies. (TV: Planet of the Ood)

Dated events
The Tenth Doctor and Donna Noble helped start the Revolution of the Ood on the Ood Sphere in 4126. This led to the Ood gaining their freedom from Humans. (TV: Planet of the Ood)

Undated events
The cargo ship SS Pentallian began a fuel run on the sentient star, Torajii. Some of her crew were possessed by the intelligence and the SS Pentallian was drawn towards the sun. (TV: 42)

Behind the scenes
Planet of the Ood confirms The Impossible Planet and The Satan Pit as being set in the 42nd century, when the Tenth Doctor refers to the Ood as "servants of humans in the 42nd century" (before either he or Donna hear the year in Ood).