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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.

Thomas reportedly ended his relationship with Thiel this past fall, as it started to cause him great anxiety. “I don’t think it’s very satisfying, to be honest, to be kept,” Thomas told Grim. “I saw ...

Translation of Atlas der normalen Histologie und mikroskopischen Anatomie des Menschen, 2d ed. siris_sil_49880 ...