41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
1882159
153306
1
Public Timelines
FAQ

jan 1, 1803 - John Dalton develops atomic theory invisible solid sphere model

Description:

Discovered that all matter is made up of tiny invisible particles

Added to timeline:

12 Oct 2018
0
0
581

Date:

jan 1, 1803
Now
~ 223 years ago

Images: