Template:Are You Sure/December 9
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• ... that mathematician and astronomer Adriaan Metius (9 December 1571 – 6 September 1635) manufactured precision astronomical instruments, and published treatises on the astrolabe and on surveying?
• ... that Secret Reagent Man is a British-American television series about a spy (Patrick McGoohan) and a musician (Johnny Rivers) who team up to advance chemistry worldwide?