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- Ptolemy I Soter - Wikipedia
Ptolemy was king and pharaoh of Ptolemaic Egypt from 305 304 BC to his death in 282 BC, [note 1][3] and his descendants continued to rule Egypt until 30 BC During their rule, Egypt became a thriving bastion of Hellenistic civilization and Alexandria a great seat of Greek culture
- Ptolemy | Accomplishments, Biography, Facts | Britannica
Ptolemy was an astronomer, mathematician, and geographer who lived during the 2nd century CE He is known for his geocentric (Earth-centred) model of the universe
- Claudius Ptolemy - World History Encyclopedia
Ptolemy was a keen astronomer, although he was reliant on the naked eye since the telescope was not invented until the early 17th century What Ptolemy did have access to were masses of astronomical observations taken by ancient Babylonian scientists from the 8th to the 3rd centuries BCE
- Claudius Ptolemy - Biography, Facts and Pictures
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
- Ptolemy - New World Encyclopedia
Ptolemy, or in Latin Claudius Ptolemaeus (ca 90 – ca 168 C E ), was a mathematician, philosopher, geographer, map maker, astronomer, theologian, and astrologer who lived in Alexandria, Egypt
- Ptolemy - University of Oregon
Ptolemy, Latin in full Claudius Ptolemaeus (fl AD 127-145, Alexandria), ancient astronomer, geographer, and mathematician who considered the Earth the center of the universe (the "Ptolemaic system")
- Ptolemy - Wikipedia
Like Aristotle before him, Ptolemy classifies mathematics as a type of theoretical philosophy; however, Ptolemy believes mathematics to be superior to theology or metaphysics because the latter are conjectural while only the former can secure certain knowledge
- The life of Ptolemy, ancient astronomer | BBC Sky at Night . . .
Claudius Ptolemaeus (circa AD 100–170), better known as Ptolemy, was a Greco-Roman astronomer, mathematician, geographer and cartographer He was a citizen of Alexandria, Egypt, in the 2nd century AD
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