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brookepride t1_j0i82lf wrote on December 16, 2022 at 8:53 PM

Reply to comment by mybestfriendisacow in Drought encouraged Attila's Huns to attack the Roman empire, tree rings suggest by ArtOak

Also the diaspora of displaced people means that there is more movement and disease spreads quicker and easier. Think Spanish Flu spreading globally because of World War 1 moving armies and displaced people around.