The plague, otherwise known as the Black Death began in Asia as flea infested rats roamed the streets of the country spreading the deadly disease.
The Black Death was estimated to have killed 30-60% of Asia's and Europe's population. Soon dead bodies filled every corner of the streets.
FLEAS back to kill
After the Black Death reached Europe the Mongols, led by Ghangis Khan, his army began to decrease. As a result Ghangis Khan catapulted the plague infected bodies over to trade centers to keep the plague away from him and his army.
DO NOT ENTER
After bodies became catapulted fleas became infected with the disease and got onto the rats who ran along the streets of the country. Once again the Black Death had begun.
The plague was highly deadly and started with just feeling light headed with a slight fever, until soon buboes — swollen lymph nodes form which typically develops within a week after an infected flea bites you.
Once infected the people usually had 2-6 days left to live. And soon leaving the house wasn't safe, so if someone in your household died then you would soon be infected too.