Author:Ptolemy
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Claudius Ptolemaeus
Works[edit]
Works about Ptolemy[edit]
- "Ptolemy," in Encyclopædia Britannica (11th ed., 1911)
- "Ptolemy, Claudius Ptolemæus," in The New Student's Reference Work, Chicago: F.E. Compton and Co. (1914)

Some or all works by this author were published before January 1, 1928, and are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.
Categories:
- 100 births
- 170 deaths
- 87 births
- Ancient authors
- Authors-Pt
- Male authors
- Ancient Roman authors
- Mathematicians as authors
- Geographers as authors
- Astronomers as authors
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- Music theorists as authors
- Philosophers as authors
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- Author-PD-old
- Greek authors
- Ancient geographers
- Ancient mathematicians