|Millennium:||1st millennium BC|
|252 BC by topic|
Year 252 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Cotta and Geminus (or, less frequently, year 502 Ab urbe condita). The denomination 252 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.