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Keywords
- Early works3
- Manuscripts, Turkish3
- Manuscripts, Arabic2
- New Jersey--Princeton2
- Timekeeping2
- diagrams2
- Almucantar1
- Arithmetic1
- Astrology1
- Astronomical instruments1
- Astronomy1
- Astronomy, Arab1
- Charts, diagrams, etc.1
- Constellations1
- Islamic Empire1
- Lunar eclipses1
- Manuscripts, Persian1
- Mathematics, Arab1
- Qiblah1
- Rainbows1