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Ptolemy's full name is Claudius Ptolemaeus.
Ptolemy was born around 90 AD and died around 168 AD, making his lifespan around 78 years.
c. 150
Claudius Ptolemy worked in Alexandria, Egypt during the second century AD. He was a Greco-Roman mathematician, astronomer, and geographer known for his influential works on astronomy and geography.
The treatise was written by the Greek, Claudius Ptolemaeus or Ptolemy (90-168 AD).