| 释义 |
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{{Year nav|-644}}{{BC year in topic|644}}The year 644 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 110 Ab urbe condita . The denomination 644 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. Events{{Empty section|date=August 2013}}Births{{Empty section|date=August 2013}}Deaths- Bao Shuya, prominent official under Duke Huan of Qi
References{{DEFAULTSORT:640s Bc}}{{BC-year-stub}} 2 : 640s BC|644 BC |