AI overview
I don't have enough context to write an accurate overview of "687." The context provided only indicates it's a year, but there are many significant events, people, or works associated with that number throughout history. Could you provide additional information about what specifically "687" refers to?
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Article
Pope Sergius I (687–701)
Year 687 (DCLXXXVII) was a common year starting on Tuesday of the Julian calendar. The denomination 687 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.