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History of timekeeping devices

history of devices for measuring time

Pronunciation
/ˈhɪstəri əv ˈtʌɪmkiːpɪŋ dɪˈvʌɪsɪz/
/ˈhɪstəri əv ˈtaɪmˌkipɪŋ dɪˈvaɪsəz/
Categories
history