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In page 107 BC:

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Year 107 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Ravilla[citation needed] and Marius (or, less frequently, year 647 Ab urbe condita) and the Fourth Year of Yuanfeng. The denomination 107 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.