Floor 1056
Floor 1056 was one of over a thousand decks on a Mondasian colony ship. The floor contained a hospital and various apartment blocks.
When the colony ship almost traversed into a black hole, each of the ship's floors was affected by time dilation. Located at the lowest end of the ship, time travelled faster on floor 1056 than on any of the floors above. 2 days and 10 hours at the top equated to just over 1000 years for those on floor 1056.
History
Colonisation
The ship was travelling from Mondas to pick up colonists. When the ship almost traversed into a black hole, around twenty crew members were sent to the bottom of the ship, approximate to the location of floor 1056, to reverse the rear thrusters. Unable to return to the top of the ship, the crew members remained at the bottom.
Degradation
Many generations later, the deck was rusting away and the air was filled with fumes from the ship's engines. The staff at the hospital on floor 1056 were working towards Operation Exodus, an artificial evolution which would aid the survival of the floor's inhabitants. The people were gradually upgraded into prototypes. These stronger-than-human prototypes would travel to the upper levels to collect any remaining humans for conversion.
After being shot through the chest, Bill Potts arrived at the hospital on floor 1056 to be "repaired". There, she encountered a surgeon, a nurse and their assistant - Razor.
Over the years, the technology grew more advanced and Bill soon became the first fully cybernetic humanoid. (TV: World Enough and Time)