33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
5636944
532222
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
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
jan 1, 1864 - John Newlands (1864) Proposed classifying the elements in order of increasing atomic weights and were grouped similarly to today's 7 groups (e.g Alkali Metals, Metalloids, ect.)
Added to timeline:
Periodic Table timeline
By
Callum
30 Jul 2021
2
0
328
Date:
jan 1, 1864
Now
~ 161 years ago
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
