2172

In 2172, the Tzun attempted to conquer the Veltrochni. (PROSE: First Frontier) Though the Tzun were successful at the beginning, as the war carried on the Veltrochni packs joined forces and fought back. They drove the Tzun off, destroyed many of their colony planets and effectively broke the entire Tzun Confederacy. The Veltrochni became renowned for their power after this. (PROSE: The Dark Path) After this, the Veltrochni gained the Tzun's advanced weaponry. (PROSE: Mission: Impractical)

The pesticide GK50 was used on swarms of highly aggressive wasps that were attacking people. (AUDIO: The Mutant Phase)

The Fourth Doctor and Leela visited Gloricious. (PROSE: Christmas Every Day)