AI overview
I don't have specific context provided about what "650" refers to in relation to the year. To write an accurate, neutral overview based solely on the context you've given, I would need clarification about what "650" represents (such as the year 650 AD, a historical event in 650, or something else entirely).
AI-generated from the Wikipedia summary — may contain errors.
Article
The Khazar Khaganate (650–850)
Year 650 (DCL) was a common year starting on Friday of the Julian calendar. The denomination 650 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.