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Keywords
- Agriculture--Religious aspects--Hinduism1
- Al-Munajjim al-Kashi, Yahya ibn Imad bin Yahya1
- Alchemy2
- Alexander, the Great, 356 B.C.-323 B.C.2
- Almagest (Ptolemy)2
- Almanach perpetuum celestium motuum (Zacuto, Abraham ben Samuel)1
- Almanacs2
- Almucantar1
- Annotations5
- Aristotle3
- Arithmetic4
- Armenia1
- Astrolabes10
- Astrology19
- Astrology and death1
- Astrology, Arab2
- Astrology, Iranian1
- Astrometeorology1
- Astronomical instruments4
- Astronomical literature2