The Decameron by Boccaccio "…such terror was struck into the hearts of men and women by this calamity, that brother abandoned brother, and the uncle his nephew, and the sister her brother, and very often the wife her husband. What is even worse and nearly incredible is that fathers and mothers refused to see and tend their children, as if they had not been theirs… The city was full of corpses…" QUESTION: What was the impact of the historical development described in the above source?