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La Bougie du Sapeur, a humorous French newspaper that is published only on leap days, printed its first issue.

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La Bougie du Sapeur
French satirical newspaper published only on Leap Day
La Bougie du Sapeur is a French satirical newspaper launched in 1980 that is published only on Leap Day, making it the world's least frequently published newspaper. The editor-in-chief is Jean d'Indy, who works for France Galop and has been involved in producing the paper since…Source: Wikipedia (CC BY-SA)