Template:Selected anniversaries/August 7
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<gallery> File:A la mémoire de J.M. Jacquard.jpg|link=Joseph Marie Jacquard (nonfiction)|1834: Weaver and merchant Joseph Marie Jacquard dies. He invented the Jacquard loom, an early type of programmable machine. File:Canterbury_scrying_engine.jpg|link=Canterbury scrying engine|1958: Canterbury scrying engine reprogrammed to detect and prevent crimes against mathematical constants.