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Keywords
- Early works8
- treatises[remove]8
- codices (bound manuscripts)7
- Manuscripts, Arabic4
- Manuscripts, Medieval4
- Manuscripts, Renaissance4
- diagrams4
- Astronomy3
- Astronomy, Medieval2
- Jewish astronomy2
- Manuscripts, Hebrew2
- Manuscripts, Spanish2
- Tables (Data)2
- Annotations1
- Catholic Church1
- Ciphers1
- Controversial literature1
- Cryptography1
- Fifteenth century1
- Four elements (Philosophy)1