Ptolemy

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Ptolemy (Pronunciation: /ˈtɒləmi/; Etymology: From the Greek Πτολεμαῖος, Ptolemaios)

Ptolemy was a Greco-Roman mathematician, astronomer, geographer and astrologer. He lived in Alexandria, in the Roman province of Egypt, under the rule of the Roman Empire, wrote in Greek, and held Roman citizenship.

Biography

Little is known of Ptolemy's life except that he lived in Alexandria, Egypt, that he was a Roman citizen, and that he wrote in Greek. He was a mathematician, astronomer, geographer, and astrologer.

Contributions

Ptolemy's most famous work is the Almagest, a comprehensive treatise on astronomy, in which he proposed the geocentric theory that the Earth is at the center of the universe. He also wrote the Tetrabiblos, a foundational work on astrology, and the Geography, a detailed account of the known world.

Legacy

Ptolemy's works have had a profound influence on the development of Western science. His geocentric model of the universe was accepted for more than a thousand years, and his works on geography and astrology have also been highly influential.

See also

References

External links

External links

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