Dresden

Dresden was a city in Germany. (PROSE: The Turing Test)

During World War II, Squadron Leader Ian Gilmore flew missions over enemy territory, witnessing the bombing of Dresden by the Allies on one occasion. (PROSE: Who Killed Kennedy)

The Seventh Doctor listed the bombing of Dresden as one of the terrible things that happened after he set history back on track by freeing the Timewyrm from Adolf Hitler's mind. (PROSE: Timewyrm: Exodus)