Claudius Ptolemy CE 1.) He introduced the concepts of small circles on larger circles and points where the planets motion is not uniform. 2.) His theory of the universe formed the basis of our understanding of the motions of stars and planets for over a thousand years. 3.) He made contributions to astronomy, mathematics, geography, musical theory and optics. (1 Jan 100 Jahr v. Chr. – 1 Jun 93 Jahr v. Chr.)
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Datum:
1 Jan 100 Jahr v. Chr.
1 Jun 93 Jahr v. Chr.
~ 6 years and 7 months