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Keywords
- Almucantar[remove]20
- Early works20
- Manuscripts, Arabic19
- New Jersey--Princeton16
- Quadrants (Astronomical instruments)15
- Astronomy, Arab11
- Astronomical instruments10
- Manuscripts, Turkish9
- Astrolabes6
- Islamic Empire5
- Manuscripts, Persian4
- Time measurements4
- Timekeeping4
- diagrams4
- tables (documents)4
- Arabic language3
- Hadith3
- Illustrated works3
- Logic3
- Prayer--Islam3