Great Scourge
Plague / Epidemic
2481A.P.
2540A.P.
A major plague hits the world of Tethys called the Scourge Plague. It is able to kill the elderly within a day or two after contracting it. The plague spreads due to it being invisible, asymptomatic, as you don't show symptoms until it is too late. Holy men weren't able to stop it as it killed people en masse and shutting down travel barely helped. Many historians speculate the death toll was in millions and destroyed many economies. Some speculate that it killed nearly half of the world population.
Related Location
Tethys
Related timelines & articles
Tethys
3rd Age, The Kingdoms (article)
Riverlands Timeline
Ages of Tethys