jan 1, 1918 - Spanish flu

Description:

scientists are still unsure of its source. France, China and Britain have all been suggested as the potential birthplace of the virus

The death toll is estimated to have been anywhere from 17 million to 50 million, and possibly as high as 100 million, making it one of the deadliest epidemics in human history.

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

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