A version of this story appears in the September 2020 issue of National Geographic magazine. Philadelphia detected its first case of a deadly, fast-spreading strain of influenza on September 17, 1918.

The Cowboys only have one game left against a team currently above them in the NFC standings (Detroit in Week 14), limiting their opportunities to gain immediate ground in the wild-card race. But IF ...

A reader of mine sent me an email that impressed me with the writer's poignant plea: "How do I stop being a narcissist?" "I can't be the only person who is aware of narcissistic traits without any ...

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