Plague of Justinian, Europe and West Asia, 15-100 million dead (jan 1, 541 – jan 1, 549)
Description:
"The Plague of Justinian or Justinianic Plague was the beginning of the first plague pandemic, the first Old World pandemic of plague, the contagious disease caused by the bacterium Yersinia pestis." -WikipediaAdded to timeline:
Date:
jan 1, 541
jan 1, 549
~ 8 years