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3 mar 220 ano antes da era comum - Eratosthenes calculates the circumference of the earth. He figures out the difference in angle of the sun between Aswan and Alexandria and uses that.

Adicionado na linha do tempo:

10 important events in mathematics

ByLil Thompson
7 fev 2018

Data:

3 mar 220 ano antes da era comum
Agora
~ 2246 years ago

Imagens:

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