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1 jan 1350 ano antes da era comum - Sundials - First ever sundials, built in Egypt after being imported from Babylon. Many ancient structures were built to mark the passage of time and determine arrival of planting seasons and harvest times.

Adicionado na linha do tempo:

Maths - History of time

ByCharlotte Best
21 nov 2019
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Data:

1 jan 1350 ano antes da era comum
Agora
~ 3378 years ago
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