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63 elements discovered- Scientists saw patterns between elements (15h 20min, jan 9, 1869 y – 5h 46min, jan 15, 1870 y)
Added to timeline:
History of the Periodic Table
By
Sonya Callendar
26 Dec 2017
0
0
686
Date:
15h 20min, jan 9, 1869 y
5h 46min, jan 15, 1870 y
~ 1 years
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