AI overview
I don't have enough context to write an accurate overview of "940." You've indicated the context is "year," but this could refer to the historical year 940 CE/AD, and without knowing what specific aspect or event you're interested in, I cannot provide a meaningful summary. Please provide more details about what "940" refers to or what historical/cultural context is relevant.
AI-generated from the Wikipedia summary — may contain errors.
Article
West Slavs during the 9th–10th centuries. Siemomysł, duke of the Piast Dynasty. Year 940 (CMXL) was a leap year starting on Wednesday of the Julian calendar.
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