Michael Sendivogius

Polish alchemist, philosopher, and medical doctor (1566–1636)

Michael Sendivogius (Polish: Michał Sędziwój; 2 February 1566 – 1636) was a Polish alchemist, philosopher, and physician. A pioneer of chemistry, he developed ways of purifying and creating various acids, metals, and other chemicals. He discovered that air is not a single substance and contains a life-giving substance – later called oxygen – 170 years before Scheele's discovery of the element.

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