Keywords
- Mathematics, Arab20
- Arithmetic17
- Watermarks17
- Rites and ceremonies11
- Astrology10
- Tables9
- drawings (visual works)9
- Astrology, Arab8
- Autographs8
- Stamps8
- compilation manuscripts8
- scientific illustrations (images)8
- Astrolabes7
- Hindu mathematics7
- Astronomy, Medieval6
- Fifteenth century6
- Geometry6
- Islamic calendar6
- Manuscripts, Latin6
- Nineteenth century6