33
/ru/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
3759160
344855
2
Public Timelines
FAQ

1 янв 1864 г. - Newlands The known elements (>60) were arranged in order of atomic weights and observed similarities between the first and ninth elements, the second and tenth elements etc. He proposed the 'Law of Octaves'.

Добавлено на ленту времени:

Дата:

1 янв 1864 г.
Сейчас
~ 161 г назад