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Claudius Ptolemy developed the mathematical astronomy used in Christian and Muslim countries up until the 16Thcentury.

Christopher Columbus and Magellan used Ptolemy's version of the world map during their voyage, but they did not know it was incorrect, thus not ending up where they planned to be.

He found the position of over one thousand stars.

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13y ago
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9y ago

Ptolemy is famous for his work in geography and he was the first person to use longitude and latitude to identify places in the world.

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13y ago

Didn't hear about him till i was required to write a paper about him for school. So, he isn't really famous.

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9y ago

Ptolemy contributed to science and astronomy by developing the theory of the Earth. He was the first person to view the solar system as a heliocentric system instead of a geocentric system.

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13y ago

Ptolemy is know for two major works: The Almagest and The Tetrabiblos.

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Q: What was Ptolemy's major contribution to science?
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