Keywords
- Hindu astrology11
- Astronomy, Arab10
- Astronomy, Medieval10
- Astrolabes8
- Islamic countries8
- manuals (instructional materials)8
- History7
- Manuscripts, Hebrew7
- Mathematics7
- fragments (object portions)7
- poems7
- Stamps6
- Tables6
- Cosmology5
- Fifteenth century5
- Islamic calendar5
- Jewish astronomy5
- New York (State)--New York5
- Rites and ceremonies5
- Sixteenth century5