A ship with the crew infected arrives in Sicily spreading the plague to the residents, people trying to flee spreads the black plague to the mainland which then kills a third of the population.
1348 April: People were angry and blamed the Jews (whats new)
Once again a ship with an infected crew arrives in Europe, The ship was attacked in hopes of driving it away so that the plague would not spread more, but even though they succeeded in driving the ship away the plague still spread through Europe and devastates Italy again who was still fighting the first wave.
1349: The black plague infects Norway
It was believed that rats spread the black plague for a long time, what really happened was that the fleas were to blame. The disease spread too quickly for the culprit to be rats.
1351-1353: The Black Plague starts to die down
Due to the plague, there were restrictions on what came into and out of Europe and taverns were closed, people became enraged and it sparked anti-Semitic feelings causing people to start massacring the Jews
A ship from England takes the plague to Norway and the King thinks that fasting fridays and praying the plague away on Sundays will get rid of the plague. News flash it does not help. The plague kills the kings brothers and moves to Greenland and Russia.
After 25-50 Million people die (about half of the population of Europe) and 210 Jewish communities get massacred the Black plague finally starts to slow down and spread less eventually Europe can go back to semi normal system with new changes because of the economic spiral.