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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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21 gen 1865 anni - 1865 - Newlands Proposed Law of Octaves
Aggiunto al nastro di tempo:
Periodic Table Development
By
Josie Senko
16 ott 2018
0
0
276
Data:
21 gen 1865 anni
Adesso
~ 160 years ago
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