Who Is Claudius Ptolemy?

Claudius Ptolemy was a Greco egyptian writer, he was also known as the mathematician, astronomer, geographer, astrologer,. Ptolemy lived in the city of alexandria in egypt. He was also born in egypt and he lived there his whole life. Ptolemy was also the author of several scientific treatises. The first one he wrote is the astronomical treatise is now known as the almagest.