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3 avr. 1532 av. J.-C. - Egyptians Discovered the Science of Coagulation
Description:
They applied the chemical alum to take care of the suspended particles in the water.
Ajouté au bande de temps:
28 janv. 2018
0
0
256
Important Water Dates in History
Date:
3 avr. 1532 av. J.-C.
Maintenaint
~ Il y a 3558 ans