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Claudius Ptolemaeus. Born: c. 100 ce. Died: c. 170 ce. Notable Works: “Almagest” “Guide to Geography” “Hypotheseis ton planomenon” “Optica” Subjects Of Study: Ptolemaic system. calendar. light. projection. refraction. Top Questions. What is Ptolemy best known for? How did Ptolemy impact the world? What were Ptolemy’s achievements?
Sep 7, 2023 · Claudius Ptolemy (c. 100 to c. 170 CE) was an Alexandrian mathematician, astronomer, and geographer. His works survived antiquity and the Middle Ages intact, and his theories, particularly on a geocentric...
Claudius Ptolemy was a Greek mathematician, astronomer and geographer who lived in the Egyptian city of Alexandria while under the rule of the Roman Empire.
Claudius Ptolemy wrote the Almagest, the work that defined astronomy for over 1,000 years. The Almagest included a catalogue of over a thousand stars, recording their positions, constellations, and relative brightnesses; and a mathematical model predicting the movements of the planets.
Originally written by Claudius Ptolemy in Greek at Alexandria around 150 AD, the work was a revision of a now-lost atlas by Marinus of Tyre using additional Roman and Persian gazetteers and new principles.
Claudius Ptolemy. Quick Info. Born. about AD 85. Egypt. Died. about AD 165. Alexandria, Egypt. Summary. Ptolemy was the most influential of Greek astronomers and geographers of his time. He propounded the geocentric theory of the solar system that prevailed for 1400 years. View six larger pictures. Biography.
The Earth was the center of the Universe according to Claudius Ptolemy, whose view of the cosmos persisted for 1400 years until it was overturned — with controversy — by findings from Copernicus, Galileo, and Newton.
