Keywords
- Mathematics, Arab19
- Watermarks17
- Arithmetic15
- Rites and ceremonies11
- New York (State)--New York9
- Tables9
- drawings (visual works)9
- Astrology8
- Stamps8
- compilation manuscripts8
- Astrolabes7
- Astrology, Arab7
- Autographs7
- Hindu mathematics7
- Fifteenth century6
- Geometry6
- History5
- Islamic calendar5
- Islamic countries5
- Manuscripts, Latin5