1991

1991 was notable for being the year when three inches of steel protected all of the walls of the Cabinet Room inside 10 Downing Street. (TV: World War Three)

Dated events
On 4 May, Captain Therése Gavalle was found at an airport in Nice, France, taking a flight to Switzerland. She had no memory of what had happened to her since her disappearance in Réunion in 1988. (PROSE: Instruments of Darkness)

In the summer, an eroded Ogri began attacking people along the English coast. It stole the bones of its victims and used them to give itself a humanoid structure. The Seventh Doctor heard of the missing people and came to Blackpool with Ace when a building caught fire near the beach. The Ogri was attracted to the heat from the fire and came out of the ocean. The Doctor had the firefighters dissolve the Ogri with their hoses. He then put the Ogri into a pail and poured it into the fire, killing the Ogri and putting out the fire. (COMIC: Seaside Rendezvous)

On 23 July, Melanie Bush returned to Brighton after travelling with the Doctor and Sabalom Glitz. (PROSE: Missing, Part One: Business as Usual)

Undated events
Aubrey Prior burned down Kenilworth's house. (PROSE: The Sands of Time)

Shaun Brett hired Monica Lewis to aid in building a monument to his deceased father in Alaska. (AUDIO: The Land of the Dead)

Jenny Winterleaf wandered onto Iris Wildthyme's Celestial Omnibus when it was parked in Sunderland. Wildthyme left Earth before Jenny could get out and the two began travelling together. (PROSE: The Dreadful Flap)

George Smithers' wife died of lung cancer. (PROSE: Invasion of the Cat-People)

Behind the scenes
According to a sighting report sent to Whoisdoctorwho.co.uk by someone under the username of "rewboss", the Ninth Doctor visited in this year and encountered rewboss.