Influenza history 

Our words literally come from the sky. 

In 1918, “influenza” or flu was a catchall term for disease of unknown origin.  It didn’t carry the specific meaning it does today. It meant some mystery disease which dropped out of the sky.  In fact, influenza is from the Medieval Latin “influential” in an astrological sense, meaning a visitation under the influence of the stars. 

http://www.firstfreedoms.org/

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