29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
1397179
109135
2
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
jan 1, 1869 - Dmitri Medeleev
Description:
Put forward the law of octaves, which stated that when elements are arranged in increasing atomic mass, elements with similar properties occur every 8 elements.
Added to timeline:
28 Jul 2018
0
0
323
Science
Date:
jan 1, 1869
Now
~ 155 years ago
Images: