Black Death, plague, Aragón
As Philip Ziegler has noted, "Statistics alone cannot provide an adequate picture of the Black Death." To say that one-quarter or one-third or one-half of Europe's population perished within a few years gains the reader's attention, but does not convey what such a brutal calamity meant to the average person at the time. The fourteenth century suffered many calamities, but the sudden and mysterious appearance of the Black Death, with no known cause or cure, msut surely have been the most terrifying.
Shirk, Melanie V.
"Violence and the Plague in Aragón, 1348-1351,"
Quidditas: Vol. 5
, Article 5.
Available at: https://scholarsarchive.byu.edu/rmmra/vol5/iss1/5