Potassium is an element, I think you asking when it was discovered
Potassium was not invented; it is a naturally occurring element on the periodic table with the atomic number 19. It was first isolated by Sir Humphry Davy in 1807 through the electrolysis of caustic potash (potassium hydroxide).
Potassium was first identified as an element is the year 1806/07.
Potassium was not invented by a single individual. It is a naturally occurring chemical element that was discovered through various experiments and observations by scientists over time. Humphry Davy is credited with isolating potassium in 1807 through the electrolysis of molten potassium hydroxide.
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