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Keywords
- Early works6
- Manuscripts, Arabic6
- Timekeeping[remove]6
- New Jersey--Princeton5
- Almucantar2
- Astronomical instruments2
- Astronomy, Arab2
- Watermarks2
- diagrams2
- scientific illustrations (images)2
- tables (documents)2
- Arabic literature1
- Astrolabes1
- Autographs1
- Fasting--Religious aspects--Islam1
- Fasts and feasts--Islam1
- Islamic Empire1
- Islamic ethics1
- Jumʻah1
- Manuscripts, Persian1