The Great Plague hit London in 1665
. In 1665, London was struck by the Great Plague. This was a rare but deadly recurrence of the medieval Black Death
. London's death toll was about 100000 - this was around 20% of the city's population. Many people fled the city, but only richer people had this option
. Doctors and priests were often most affected because the sick went to them for help
(Like the Black Death, the Great Plague was spread by the bites of fleas from rats. The people at the time didn't know this, though.)