9 November

9 November was the date of the Spiridon hide-and-seek tournament. (PROSE: Time Traveller's Diary)

In 1923, the Seventh Doctor and Ace arrived in Munich just as the Beer Hall Putsch concluded. Adolf Hitler and his followers had been driven away from the War Office by soldiers. To Ace's surprise, the Doctor told Hitler that he must not give up and would one day rule Germany. Hastily explaining his actions were necessary to ensure that Earth history ran its proper course, the Doctor ushered Ace back to the TARDIS, where they were fired upon with an energy weapon, a sign that a non-contemporaneous person had been manipulating the past. (PROSE: Timewyrm: Exodus)

In 1954, the First Doctor, Susan Foreman, Ian Chesterton and Barbara Wright attended a performance of The Crucible by Arthur Miller in Bristol. (PROSE: The Witch Hunters)

In 1989, the numerous revolutions against the rule of the Soviet Union in the Eastern Bloc countries led to the fall of the Berlin Wall in East Berlin, East Germany. (AUDIO: Protect and Survive; COMIC: The Broken Man) Prior to or during his tenth incarnation, the Doctor had witnessed the fall of the Berlin Wall on two occasions. The actor David Hasselhoff was also present and sang a song. (PROSE: Autonomy)

Also in 1989, in an alternate timeline created by the Elder Gods in the hope of destroying Earth, a nuclear war which came to be known as World War III broke out between the United States and its allies including the United Kingdom on the one hand and the Soviet Union on the other hand. Given that nuclear weapons were used by both sides, hundreds of millions of people were killed in the conflict. This timeline was ultimately negated by the Seventh Doctor. (AUDIO: Protect and Survive)