1 September

1 September was a date.
In 1859, Earth experienced one of the biggest solar storms on record, the Carrington Event. As Earth advanced technologically, it became increasingly vulnerable to these events. Future storms caused widespread electrical blackouts and flesh-avatar autonomy. (PROSE: Time Traveller's Diary)
In 1939, World War II began on Earth when Germany invaded Poland. The Seventh Doctor warned Hitler that Britain and France would declare war if he took this action. (PROSE: Timewyrm: Exodus, AUDIO: Neverland, Just War)
In 2982, Roz Forrester, companion of the Seventh Doctor, was buried on Earth in the Umtata Reclamation Zone. (PROSE: So Vile a Sin)