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I don't have enough context to write an accurate overview of what "862" refers to. The single word "year" doesn't specify which historical event, development, or significance of the year 862 CE you're asking about. Could you provide more details about what aspect of 862 you'd like covered?
AI-generated from the Wikipedia summary — may contain errors.
Article
Rurik and his brothers Sineus and Truvor arrive at Staraya Ladoga (modern Russia)
Year 862 (DCCCLXII) was a common year starting on Thursday of the Julian calendar.