AI overview
I don't have enough context to provide an accurate overview of "844" based solely on the fact that it's a year. To write an accurate, factual summary for a general reader, I would need specific information about what happened in 844 or why that particular year is historically significant.
AI-generated from the Wikipedia summary — may contain errors.
Article
Pope Sergius II (844–847)
Year 844 (DCCCXLIV) was a leap year starting on Tuesday of the Julian calendar.