41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
5366671
505807
2
Public Timelines
FAQ

jan 1, 1803 - Solid Sphere Model

Description:

John Dalton theorised atoms, saying that they are invisible, and atoms from the same element are identical.

Added to timeline:

11 May 2021
0
0
201

Date:

jan 1, 1803
Now
~ 223 years ago