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History of the Doctor Who Universe

 * The Thirty Years' War ends on Earth. The War Lords had kidnapped soldiers from this conflict for use in their war games ("The War Games").

December

 * Unknown Date - The events in "The Roundheads" take place.

History of Doctor Who

 * George Jeffreys, later judge at the notorious "Bloody Assizes," is born in Wales. In 1980, the Fourth Doctor will mention him as one of the many great Cambridge alumni while punting with Romana ("Shada," "The Five Doctors").