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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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31 magg 1869 anni - Medeleev publishes periodic table
Aggiunto al nastro di tempo:
CHEM timeline
By
Trinity
10 dic 2017
0
0
502
Data:
31 magg 1869 anni
Adesso
~ 156 years ago
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