310310 310 Year 310 (CCCX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Andronicus and Probus (or, less frequently, year 1063 "Ab urbe condita"). The denomination 310 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. <onlyinclude> </onlyinclude> 310 Year 310 (CCCX) was a common year starting on Sunday (link will display the full calendar) of the