Jack with the facts-the black death

I got most of my information from https://www.webmd.com/a-to-z-guides/news/20200714/squirrel-with-bubonic-plague-found-in-colorado

https://www.dkfindout.com/us/history/black-death/

https://www.google.com/amp/s/www.history.com/.amp/topics/middle-ages/black-death