The phlogiston theory was proposed in 1667 by Johann Joachim Becher.

The phlogiston theory ( from the Ancient Greek φλογιστόν phlogistón " burning up ", from φλόξ phlóx " flame "), first stated in 1667 by Johann Joachim Becher, is an obsolete scientific theory that postulated the existence of a fire-like element called " phlogiston ", which was contained within combustible bodies and released during combustion.

In 1667, Johann Joachim Becher published his Physical Education, which was the first mention of what would become the phlogiston theory.

* Johann Joachim Becher ( 1635 – 1682 ), German physician, alchemist, precursor of chemistry, scholar and adventurer

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.

Johann Joachim Becher was also the most original and influential theorist of Austrian cameralism.

Into the eighteenth century scholars could feel oddly comfortable in both camps — like the German Johann Becher, who produced sober and unexceptionable work on mineralogy called Physica Subterranea, but who also was certain that, given the right materials, he could make himself invisible.

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# REDIRECT Johann Joachim Becher

Josef ’ s son, Johann " Jan " Nepomuk Becher, took over in 1838.