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Keywords
- Early works19
- Manuscripts, Arabic19
- Timekeeping[remove]19
- New Jersey--Princeton17
- Astronomy, Arab7
- Astrolabes6
- Tables6
- Qiblah5
- Astronomical instruments4
- Quadrants (Astronomical instruments)4
- Almucantar3
- Astronomy3
- Manuscripts, Persian3
- Sharḥ al-Wiqāyah (Maḥbūbī, ʻUbayd Allāh ibn Masʻūd)3
- scientific illustrations (images)3
- tables (documents)3
- Calendar2
- Manuscripts, Turkish2
- Mathematics, Arab2
- Watermarks2