There's also scientists at that time period saying that it's because of the alignment of Saturn, Jupiter, and Mars. That's why this is occurring. So if their solutions are no bathing, not changing your clothes, and looking up to God and the stars, blaming them, the disease is going to travel pretty easily. And of course anybody who comes into contact with these people, and if you're losing half the population, where are you going to bury the bodies? Just think of that. So they're drilling big pits and they're throwing the bodies over the city walls and they're decaying and the fleas are hopping around. And every time someone leaves, the fleas are leaving and traveling and of course because of the ships and the trading ports, it's going to travel much faster than if it was just human to human contact with pneumonia or something like that.