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Keywords
- Almucantar2
- Arab countries1
- Arabic alphabet1
- Arabic language1
- Arithmetic1
- Astrolabes3
- Astrology, Arab1
- Astronomical instruments4
- Astronomy2
- Astronomy, Arab4
- Astronomy, Medieval1
- Autographs1
- Classification of sciences1
- Colored papers1
- Comets1
- Cosmology1
- Divination1
- Early works6
- Elements (Euclid)1
- Encyclopedias and dictionaries1