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Timeline of time measurement inventions

timeline of notable events in the history of timekeeping devices

Pronunciation
/ˈtaɪmlaɪn əv taɪm ˈmɛʒərmənt ˌɪnˈvɛnʃənz/
/ˈtʌɪmlʌɪn əv tʌɪm ˈmɛʒəmənt ɪnˈvɛnʃənz/
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