AI overview
I don't have enough context to write an accurate overview. "731" could refer to many things (a year, a military unit, a location, etc.), and you've only provided "year" as context. Could you clarify what aspect of 731 you'd like me to explain?
AI-generated from the Wikipedia summary — may contain errors.
Article
Pope Gregory III (731–741)
Year 731 (DCCXXXI) was a common year starting on Monday of the Julian calendar. The denomination 731 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.