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Ptolemy (1 Jan 100 Jahr – 1 Jan 170 Jahr)

Beschreibung:

Ptolemy claimed that the planets moved in small circles, epicycles, around a larger circle, a deferent. His theory was more accurate, but required more complex calculations.

Zugefügt zum Band der Zeit:

Datum:

1 Jan 100 Jahr
1 Jan 170 Jahr
~ 70 years