2018

In 2018, Ace bought a copy of NME outside Ladbroke Grove hypertube station. In it, the Seventh Doctor had placed a personal advert that read, "Ace - Behind You!". (PROSE: Timewyrm: Revelation)

By this time, Earth was politically divided into "zones" overseen by the World Zones Authority, a successor to the United Nations. A major challenge faced by the organisation was deteriorating environmental conditions and overpopulation. (TV: The Enemy of the World)

The Second Doctor and his companions Jamie McCrimmon and Victoria Waterfield landed in Australia and became involved in Giles Kent's plot to overthrow the Doctor's double, Salamander. Salamander was a powerful figure involved in the global politics of this era. Around this time, parts of central Europe are devastated by volcanic eruptions. (TV: The Enemy of the World)

The Biodiversity Tower was built in 2018. (PROSE: Six Impossible Things Before Breakfast)