654877bd_erials_Science_and_Engineering__Significance
[Date] 1807 [Candidate Moment] Sir Humphry Davy develops the process of electrolysis to separate elemental metals from salts, including potassium, calcium, strontium, barium, and magnesium. [Significance] 
Establishes the foundation for electrometallurgy and electrochemistry.
Greatest Moments in Materials Science and Engineering
Significance