◌◌◌plague
Named after the emperor at the time, the Plague of Juastinian is estimated to have wiped out about half of Europe's population.
￫ Yersinia Pestis, impetus, Justinian, moniker, sanitation, catapult, Byzantine, vulnerable
http://qindex.info/i.php?x=4070
• catapult ⪢⪢
◌◌◌ Christianity
◌◌◌ plague
