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Keywords
- Early works3
- Manuscripts, Arabic3
- Manuscripts, Turkish3
- Timekeeping[remove]3
- Astronomical instruments2
- Astronomy2
- Astronomy, Arab2
- New Jersey--Princeton2
- diagrams2
- Almucantar1
- Arithmetic1
- Astrology1
- Charts, diagrams, etc.1
- Constellations1
- Islamic Empire1
- Letter writing, Persian1
- Manuscripts, Persian1
- Mathematics, Arab1
- Qiblah1
- Rainbows1