33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
1799543
145160
2
Create a timeline
Public Timelines
For education
For educational institutions
For teachers
For students
Cabinet
For educational institutions
For teachers
For students
Open cabinet
FAQ
Get premium
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
may 23, 1869 - Dmitri Mendeleev
Description:
Classified 63 elements arranging them in ascending order of atomic weight and grouping them by similarity of properties.
Added to timeline:
Atomic History_LaFuente
By
Moira
3 Oct 2018
0
0
431
Date:
may 23, 1869
Now
~ 156 years ago
Images:
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL