[[Category:th century| *]] [[Category:s| *]] [[Category:th century decades]] In 3999, the Intergalactic Olympic Games were held on Micawber's World. A Wirrn hive attempted to use drugs laced with genetic code to spread across the galaxy, but were stopped by the Eighth Doctor. (PROSE: Placebo Effect) Meanwhile, the Fourth Doctor and Sarah Jane Smith travelled to Aquatica for an adventure with Professor Vittorio Levi. (PROSE: War on Aquatica) Also in this year, Sara Kingdom spent six months on assignment on Venus. (AUDIO: The Guardian of the Solar System)