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 IDF has declared Gaza City as a combat zone, moving about a million residents out of the city. AddedAug 29th, 2025 The entire northern coast of Japan is today under a tsunami alert after a 7.6 ...