Findings:
- Hebrew Calendar
- Gregorian Reforms
- Gregorian University
- Gregorian chant
- Gregorian
- Gregorian calendar
- Gregorian Tree
- The Story of the Third Calender, Son of a King
- The Story of the Second Calender, Son of a King
- The Story of the First Calender, Son of a King
- The Story of the Three Calenders, Sons of Kings, and of Five Ladies of Bagdad
- Christian Star Calendar
- Calender
- Discordian calendar
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