Throughout the summer of 1665 there were literally bodies piled up on the city streets of London. Every evening the town crier shouted “Bring out your dead” and men came around with carts to haul the latest victims of the Bubonic Plague off to one of two mass graves outside the city. When someone fell ill they were sealed up in their homes with their families, and a red cross was painted on their front door with the words “Lord, have mercy on us” underneath. Tens of thousands in London were dead by July of that summer, and over a…