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Keywords
- Early works2
- Fifteenth century2
- History2
- Manuscripts, Arabic2
- New Jersey--Princeton2
- Sources[remove]2
- Astronomy, Arab1
- Eighteenth century1
- Fourteenth century1
- Islamic Empire1
- Mathematics, Arab1
- Predictive astrology1
- Quadrants (Astronomical instruments)1
- Rainbows1
- Sexagesimal system1
- Sixteenth century1
- Time measurements1