Link to "Institution of the Great Litany"

http://blog.metmuseum.org/artofillumination/2010/04/07/the-institution-of-the-great-litany-hours-of-the-cross-and-holy-spirit-prayers/

Guard house built to watch for plague ships, Sicily

Plague Map

Black Death in the News!

http://www.nytimes.com/2001/10/02/science/new-theories-link-black-death-to-ebola-like-virus.html