The Plague of Justinian - "One of the deadliest plagues in history, the devastating pandemic resulted in the deaths of an estimated 25–50 million people during two centuries of recurrence, a death toll equivalent to 13–26% of the world's population at the time of the first outbreak."

[u/[deleted]]

https://en.wikipedia.org/wiki/Plague_of_Justinian

[u/The_Inner_Light]

"The plague weakened the Byzantine Empire at a critical point, when Justinian's armies had nearly retaken all of Italy and the western Mediterranean coast; the evolving conquest would have reunited the core of the Western Roman Empire with the Eastern Roman Empire. Although the conquest occurred in 554, the reunification did not last long. In 568, the Lombards invaded Northern Italy, defeated the small Byzantine army that had been left behind, and established the Kingdom of the Lombards."

Wow, never knew the Roman Empire was this close to reunification.

[u/undrway_shft_colors]

I wonder what made the recurrences stop after the 750's...

[u/[deleted] → u/undrway_shft_colors]

Survivors breeding with survivors meant their children were resistant.

[u/Tipster74743]

Thanos Plague