OMG
Only history remains witness on how deadly the Black Plague was.
OMG
While it is still a mystery as to when and where the Black Plague started, here are some theories according to historians and scholars about the history's deadliest plague.
OMG
The Black Plague never stopped and was proven by a group of biologists in Yellowstone Park. Mountain lions were found positive to the same bacteria that made the dreadful plague possible in the 14th century.
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