Carrington Event
From Tardis Wiki, the free Doctor Who reference
The Carrington Event was a solar storm that hit the Earth on 1 September, 1859. It was one of the biggest solar storms on record. As Earth advanced technologically, it later became increasingly vulnerable to solar storm events. However, due to Earth having made only minor technological advancements by the 19th century, the harmful effects of the Carrington Event were minimal. (PROSE: Time Traveller's Diary)
