proper name · Alexandrian Greek astronomer, mathematician, and geographer (c. 90–c. 168 AD) and author of the Almagest.

托勒密的地心说在欧洲中世纪被视为真理。

proper name · The line of kings who ruled Egypt after the partition of Alexander the Great's Empire in 305 BC.

托勒密一世曾是亚历山大大帝的一名将领。