Claudius Ptolemy (; , "Klaudios Ptolemaios" ; ; ) was a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology. He lived in the city of Alexandria in the Roman province of Egypt, wrote in Koine Greek, and held Roman citizenship. The 14th-century astronomer Theodore Meliteniotes gave his birthplace as the prominent Greek city Ptolemais Hermiou () in the Thebaid (). This attestation is quite late, however, and, according to Gerald Toomer, the translator of his "Almagest" into English, there is no reason to suppose he ever lived anywhere other than Alexandria. He died there around AD168.

Ptolemy wrote several scientific treatises, three of which were of importance to later Byzantine, Islamic and European science. The first is the astronomical treatise now known as the "Almagest", although it was originally entitled the "Mathematical Treatise" (, "Mathematike Syntaxis") and then known as the "Great Treatise" (, "He Megale Syntaxis"). The second is the "Geography", which is a thorough discussion of the geographic knowledge of the Greco-Roman world. The third is the astrological treatise in which he attempted to adapt horoscopic astrology to the Aristotelian natural philosophy of his day. This is sometimes known as the "Apotelesmatika" () but more commonly known as the "Tetrabiblos" from the Greek () meaning "Four Books" or by the Latin "Quadripartitum".

Answer this series of questions:

1. How many areas of expertise did Claudius have?
2. Where did he live?
3. Where was he considered a citizen?
4. Was he listed as residing elsewhere?
5. By who?
6. Was it true?
7. Who was Theodore?
8. When did Ptolemy die?
9. What did he write?
10. Who were they of significance to?
11. What was his first writing?
12. Did it have another title?
13. What was the other title?
14. Was that the original title?
15. What was another one of his writings?
16. Did it have any other titles?
17. What was another of his writings?
18. Did it have any other names?
19. What was it also known as?
1. Five
2. city of Alexandria in the Roman province of Egypt
3. Rome
4. Yes
5. Theodore Meliteniotes
6. No.
7. 14th-century astronomer
8. around AD168
9. scientific treatises
10. Byzantine, Islamic and European science
11. Almagest
12. Yes
13. Mathematical Treatise
14. Yes.
15. Geography
16. No.
17. Apotelesmatika
18. Yes.
19. Tetrabiblos