Flip through some of the most compelling National Geographic covers from the last 50 years. See every issue since 1888 cover-to-cover with Nat Geo PLUS, subscribing members’ all-access pass to ...
This story appears in the March 2018 issue of National Geographic magazine ... States’ first big health-education campaign, with one poster discouraging “careless spitting, coughing, sneezing.” ...
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