Keywords
- Astronomy, Medieval3
- Austria3
- Calendars3
- Manuscripts, Hebrew3
- Manuscripts, Turkish3
- Tables (Data)3
- Astrology, Arab2
- Astronomical instruments2
- Astronomy, Ancient2
- Charts, diagrams, etc.2
- Islamic calendar2
- Islamic countries2
- Manuscripts2
- Manuscripts, German2
- New York (State)--New York2
- Seventeenth century2
- Solar eclipses2
- Sundials2
- Turkey2
- commentaries2