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  1. Ptolemy I Soter - Wikipedia

    Ptolemy was one of Alexander's most trusted companions and military officers. After the death of Alexander in 323 BC, Ptolemy retrieved his body as it was en route to be buried in Macedon, …

  2. 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.

  3. Claudius Ptolemy - World History Encyclopedia

    Sep 7, 2023 · 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 …

  4. The Life of Ptolemy I Soter: Founder of the Ptolemaic Dynasty

    Aug 29, 2024 · Explore the life and legacy of Ptolemy I Soter, from his early years in Macedon and close companionship with Alexander the Great, to his strategic consolidation of power in …

  5. Ptolemy I Soter - New World Encyclopedia

    Ptolemy I was one of Alexander the Great's most trusted generals, and among the seven somatophylakes, or bodyguards, attached to his person. He was a few years older than …

  6. Ptolemy (85 - 165) - Biography - MacTutor History of Mathematics

    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.

  7. Ptolemy - Simple English Wikipedia, the free encyclopedia

    Ptolemy's system involved at least 80 epicycles to explain the motions of the Sun, the Moon, and the five planets known in his time. He believed the planets and sun moved around the Earth in …

  8. Ptolemy - Wikiwand

    Claudius Ptolemy, better known mononymously as Ptolemy, was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about ...

  9. Ptolemy I Soter | Macedonian King of Egypt, Wife, Alexander the …

    Dec 12, 2025 · Ptolemy I Soter was a Macedonian general under Alexander the Great, who became satrap and eventually king of Egypt. He founded the Ptolemaic dynasty.

  10. Claudius Ptolemy | Greek mathematician and astronomer - New Scientist

    Claudius Ptolemy was a 2nd century Greek mathematician, astronomer and geographer famous for his controversial geocentric theory of the universe, which would form the basis of our …