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astronomical year numbering

astronomical year numbering

method of year numbering

en-GB/ˌæstɹəˈnɒmɪkl jɜː ˈnʌmbəɹɪŋ/

en-US/ˌæstɹəˈnɑmɪkəl ˈjɪɹ ˈnʌmbɚɪŋ/

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