In a few words, what caused the Black Death in medieval Europe?

ajohnson

TommyHannam99

camodeo

gsanford

mbassler

ashtunga.szczecinski

barnold

melissa.allen

rpowell

msnettruiz

thomasfraire1

nancyboche

glen_cureton

dianna_bailey

adavid

a.addo-obiri

dalenekruger71

jdampong

wheelockm