Iceland

Iceland was an island nation in western Europe, located to the northwest of the British Isles. (TV: War of the Sontarans)

Geography
Iceland had volcanic hot springs. (TV: "The Snows of Terror")

Origin
According to Jack Harkness, the Icelandic race were of alien origin, possibly from the vicinity of Pyrovillia. They crashed on Earth while investigating the volcanoes of Iceland. (AUDIO: The Sin Eaters)

The Vikings landed in Iceland. (PROSE: A History of Humankind)

20th century
During World War II, the United Kingdom had invaded and conquered Iceland by March 1941. (PROSE: Just War)

In 1971, Iceland fought the Cod War with the United Kingdom. (PROSE: Who Killed Kennedy)

In 1984, Major Whitaker of UNIT and Dr Iskander explored an Icelandic volcano to investigate an unnatural increase in volcanic and seismic activity; they found the source to be the Dominator Haag and his Quarks, who had set up base there. (COMIC: The Fires Down Below)

21st century
Following the Planetary Relocation Incident, Martha Jones visited Iceland. (AUDIO: Dissected)

Near the year 2010, Icelandic banks became unsound, leaving depositors and investors in financial difficulties. Lady Christina de Souza told the Tenth Doctor that the reason she became a thief was that her father had lost his money in this financial debacle. (TV: Planet of the Dead)

In 2022, as part of the Master's Dalek Plan, the Daleks attempted to cause a volcano in Iceland to erupt alongside volcanoes in Indonesia and Ecuador, but were stopped by the Thirteenth Doctor using the energy from the Qurunx. (TV: The Power of the Doctor)

In the 2060s, a large population of Icelandic immigrants lived in Cardiff, leading to Icelandic slang terms being used by the inhabitants. (AUDIO: Asylum)

22nd century
In the early 22nd century, the President of the Union of Solar Republics was based in the Icelandic city Reykjavik. (PROSE: Transit)

51st century
In the 51st century, Iceland was part of the Icelandic Alliance. It lost a war to the Supreme Alliance of Eastern States and was occupied until the Filipino Army liberated Reykjavik in the Battle of Reykjavik. (TV: The Talons of Weng-Chiang, AUDIO: The Butcher of Brisbane)

Far future
Some time prior to 200,100, the Icelandic city of Polar Ventura hosted Murder Spree 20. (TV: Bad Wolf)