Spanish Flu Pandemic

It was 1918. At least 50 millions people killed by the flu worldwide. Nicholas Kristof, The New York Times:
Sports events were canceled. Theaters closed. Shaking hands was made illegal in Prescott, Ariz. Philadelphia hurriedly set up six more morgues. Families put crepe paper on doorways to signal a death inside — and crepe was everywhere.
We hope that coronavirus will not be the next one.