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Keywords
- Early works20
- Manuscripts, Arabic20
- Timekeeping[remove]20
- New Jersey--Princeton17
- Astronomy, Arab8
- Astrolabes6
- Tables6
- Astronomical instruments5
- Qiblah5
- Almucantar4
- Quadrants (Astronomical instruments)4
- tables (documents)4
- Astronomy3
- Manuscripts, Persian3
- Manuscripts, Turkish3
- Sharḥ al-Wiqāyah (Maḥbūbī, ʻUbayd Allāh ibn Masʻūd)3
- diagrams3
- scientific illustrations (images)3
- Calendar2
- Islamic Empire2