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1 gen 1803 anni - John Dalton

Descrizione:

In 1803 John Dalton had a theory that was. Elements are made of extremely small particles called atoms. Atoms of a given element are identical in size, mass, and other properties

Aggiunto al nastro di tempo:

8 gen 2018

Data:

1 gen 1803 anni
Adesso
~ 221 years ago