I am going to call you Wucket until you get my name right
So, Wucket, I have not denounced LSU yet and against my better judgement, I'll refrain from it for now. But if more people he coughed on are dropping dead, I will denounce him, unless you have come up with credible conspiracy suspects.
If you look up the plague on Wikipedia, you'll see that it came to Europe in the 1340s, killing about half to two thirds of the population. It returned every generation, though not always as deadly as the first wave. I could not, however, find evidence of the plague around the 1480s.