But then these Italian tradesmen, these sailors, they got infected and at the same time they're trying to get the heck out of Dodge. So they jump on the boats, they go on the Black Sea and they start heading towards Europe. And along the way they're going to stop at different ports, they're going to be turned away. And when they stop, if those rats get off that ship, it's going to start infecting human beings. Eventually the ship is going to land in Sicily in October of 1347 and that's where the rats are really going to do their business, eventually affecting the whole island of Sicily. And from there it's just a transmigrating process. Then the fleas are eventually going to affect more humans.