33
/es/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
1973521
159782
2
Public Timelines
FAQ

31 jul 1777 año - Antonie De Lavoisier

Descripción:

Defined the word element as a pure substance that could not be chemically broken down into similar substances. Discovered 23 elements and recognized mixtures exist and identified air as a mixture of oxygen and some other gas.

Añadido al timeline:

fecha:

31 jul 1777 año
Ahora mismo
~ 248 years ago