AI overview
I don't have enough context to write an accurate overview of "730." You've indicated it relates to a year, but "730" could refer to the year 730 CE, a rule or code numbered 730, or something else entirely. Could you provide more specific information about what "730" refers to?
AI-generated from the Wikipedia summary — may contain errors.
Article
Emperor Xuan Zong (Li Longji) (685–762)
Year 730 (DCCXXX) was a common year starting on Sunday of the Julian calendar. The denomination 730 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.