Johann Joachim Becher

Johann Joachim Becher (; 6 May 1635 – October 1682) was a German physician, alchemist, precursor of chemistry, scholar and adventurer, best known for his development of the phlogiston theory of combustion, and his advancement of Austrian cameralism. Provided by Wikipedia
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by Becher, Johann Joachim
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by Becher, Johann Joachim
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by Becher, Johann Joachim
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