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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1092 año - Water clock - First mechanical water clock created by Chinese innovator.
Añadido al timeline:
Maths - History of time
By
Charlotte Best
21 nov 2019
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0
463
fecha:
1 ene 1092 año
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~ 934 years ago
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