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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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9 mayo 1878 año - La velocidad de la Luz como medida
Añadido al timeline:
Shannon Viccenci 8a
By
Octavo
30 sep 2018
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fecha:
9 mayo 1878 año
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~ 147 years ago
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