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Sep 14, 2024 · Ptolemy (born c. 100 ce —died c. 170 ce) was an Egyptian astronomer, mathematician, and geographer of Greek descent who flourished in Alexandria during the 2nd century ce. In several fields his writings represent the culminating achievement of Greco-Roman science, particularly his geocentric (Earth-centred) model of the universe now known as ...
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 model of the universe with planets following orbits within orbits, were hugely influential until they were replaced by the heliocentric model ...
- Mark Cartwright
- Claudius Ptolemy is best known for being a 2nd-century Alexandrian astronomer who created a model of the universe with Earth as its centre. Ptolemy...
- Claudius Ptolemy's theory of the universe is that Earth is at the centre while the other planets and the Sun move around it. These heavenly bodies...
- Claudius Ptolemy's world map was relatively accurate for the Mediterranean region, but because nobody had been there, other parts of the world were...
- Full Name: Claudius Ptolemaeus. Claudius Ptolemaeus, commonly known as Ptolemy, is sometimes referred to by his Latinized name, Claudius Ptolemaeus. He lived during the 2nd century AD and was a prominent figure in the fields of astronomy, geography, and mathematics.
- Lived in the 2nd century AD. Ptolemy’s life is generally estimated to have occurred between approximately 90 AD and 168 AD. He lived during a time when the Roman Empire was at its zenith, and he made his significant contributions to science and scholarship during this period.
- Likely born in Alexandria. Ptolemy is believed to have been born in or around the city of Alexandria, which was a major cultural and intellectual center in the ancient world.
- Most famous for the “Almagest” Ptolemy’s most renowned work is the “Almagest” (in Arabic, “Al-Majisṭī”). This comprehensive astronomical treatise is often considered one of the most influential books in the history of astronomy.
Claudius Ptolemy was born in about the year 100 AD, almost certainly in Egypt. He lived in the metropolis of Alexandria on Egypt’s Mediterranean coast. Alexandria was built by the Ancient Greeks, but later conquered by the Romans. Claudius is a Roman name and Claudius Ptolemy was a Roman citizen. Ptolemy, however, is a Greek name and Ptolemy ...
Jul 3, 2019 · Claudius Ptolemy (often called Claudius Ptolemaeus, Ptolomaeus, Klaudios Ptolemaios, and simply Ptolemeus) was one of the earliest of these observers. He systematically charted the sky to help predict and explain the motions of the planets and stars. He was a scientist and philosopher who lived in Alexandria, Egypt nearly 2,000 years ago.
Biography. One of the most influential Greek astronomers and geographers of his time, Ptolemy propounded the geocentric theory in a form that prevailed for 1400 years. However, of all the ancient Greek mathematicians, it is fair to say that his work has generated more discussion and argument than any other. We shall discuss the arguments below ...
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The best indications place Ptolemy’s birth at about 90 A.D. in Alexandria, Egypt. He was known to be of Greco-Roman origin and a citizen of Rome, which ruled Egypt at the time. His first name, Claudius, is a marker of his Roman connection. He was either born into or granted Roman citizenship during the reign of the patrician family of Claudius.
