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645 BC

Calendar year From Wikipedia, the free encyclopedia

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The year 645 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 109 Ab urbe condita . The denomination 645 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

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Events

  • The Spring and Autumn Annals, a Chinese book of records, mentions that on December 24 of this year there were five meteors in the sky. It was the first Chinese observation of meteors.

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