In 639, a plague broke out, originating in Nicopolis, or Imwas, in the modern state of Israel. The city no longer exists as it was destroyed by Israeli army during Six Day war. It is estimated around 20000 people died from this plague. Among them were many prominent Sahabas. The most well-knonw of all was Abu Ubaidah, the general that succeeded KIW in Syria Another companion was Muadh ibn Jabal - most famous for these instructions he received from Prophet Muhammad before embarking to Syria Continue reading...