A nun was telling me a story about Saint Katherine Drexel when she was alive.
Her order worked with negroes (blacks). They had opened a convent in Beaumont, Texas, when the Klu Klux Klan was threathening the nuns.
Saint Katherine Drexel prayed for help of heaven to protect them. At that time, the national headquarters of the Klu Klux Klan was struck by lightning and burned to the ground...
I consider that story to be an act of God, and not out of the Middle Ages...
Ha! What ever.