Entry Version: This is the English version of this article translated by Patrick Hogan. The original Italian version was written by Eleonora Rocconi and first published on 17/11/2008. Here is the Italian version of this entry. Grammarian: Name: Claudius [1] Ptolemaeus | Κλαύδιος Πτολεμαῖος Identity: Perseus | BNP Place of Origin: Pelusium Date: 2nd c. CE ↓ To Source List Biography: Claudius Ptolemy was a Greek scientist who lived in the 2nd c. CE, most probably at Alexandria, and is famous in particular for his treatises on astronomy and geography. He was…