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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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63 elements discovered- Scientists saw patterns between elements (15 ч 20 мин, 9 янв 1869 г. – 5 ч 46 мин, 15 янв 1870 г.)
Добавлено на ленту времени:
History of the Periodic Table
By
Sonya Callendar
26 дек 2017
0
0
684
Дата:
15 ч 20 мин, 9 янв 1869 г.
5 ч 46 мин, 15 янв 1870 г.
~ 1 years
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