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127 BCE
Reference
"Ptolemy." The Columbia Encyclopedia, Paul Lagasse, and Columbia University, Columbia University Press, 7th edition, 2017. Credo Reference -
127 BCE
Ptolemy System
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127 BCE
Ptolemy system
Ptolemy is most known for his work on astronomy and geography. and his "Ptolemic system". The ptolemic system consists of the earth centered in the middle of the universe and that the other planets revolve around the earth including the sun and that all stars are the same. Ptolemy is an example of Pseudo-science. All of Ptolemy findings were true until the Copernicus teachings became true. Copernicus teachings were the the sun was at the center of the universe.
