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Keywords
- Early works10
- Manuscripts, Arabic10
- Quadrants (Astronomical instruments)[remove]10
- New Jersey--Princeton8
- Almucantar6
- Astronomical instruments6
- Astrolabes5
- Astronomy, Arab4
- Eighteenth century2
- Geometry2
- Prayer--Islam2
- Tables2
- Timekeeping2
- Astrology1
- Astronomy1
- Calendar, Chinese1
- Calendars1
- Dialectic1
- Islam1
- Islamic Empire1