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

* 1717 – Johann Joachim Winckelmann, German art historian ( d. 1768 )

He met the influential early neoclassical painter Raphael Mengs ( 1728 – 1779 ), and through Mengs was introduced to the pathbreaking theories of art historian Johann Joachim Winckelmann ( 1717 – 1768 ).

The new style was influenced heavily by the work of art historian Johann Joachim Winkelmann.

* 1820 – Johann Joachim Eschenburg, German literary critic ( b. 1743 )

* 1697 – Johann Joachim Quantz, German flautist and composer ( d. 1773 )

* 1768 – Johann Joachim Winckelmann, German scholar and archaeologist ( b. 1717 )

In 1741 he went to Berlin, where he studied musical composition under Johann Joachim Quantz.

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.

* July 12 – Johann Joachim Quantz, German flutist and composer ( b. 1697 )

* June 8 – Johann Joachim Winckelmann, German classical scholar and archaeologist ( b. 1717 )

* January 30 – Johann Joachim Quantz, German flautist and composer ( d. 1773 )

* December 9 – Johann Joachim Winckelmann, German classical scholar and archaeologist ( d. 1768 )

Frederick the Great playing a flute concerto in Sanssouci, Carl Philipp Emanuel Bach | C. P. E. Bach at the piano, Johann Joachim Quantz is leaning on the wall to the right ; by Adolph Menzel, 1852

The main composers of concerti of the baroque were Tommaso Albinoni, Antonio Vivaldi, Georg Philipp Telemann, Johann Sebastian Bach, George Frideric Handel, Pietro Locatelli, Giuseppe Tartini, Francesco Geminiani and Johann Joachim Quantz.

In 1768, the German art historian Johann Joachim Winckelmann was murdered by a robber in Trieste, while on his way from Vienna to Italy.

In 1746 he was promoted to the post of chamber musician, and served the king alongside collagues like Carl Heinrich Graun, Johann Joachim Quantz, and Franz Benda.

In fact he exerted enormous influence on the North German School of composers, in particular Georg Anton Benda, Bernhard Joachim Hagen, Ernst Wilhelm Wolf, Johann Gottfried Müthel, Friedrich Wilhelm Rust and many others.

Johann Joachim Quantz

Johann Joachim Quantz ( 30 January 1697 – 12 July 1773 ) was a German flutist, flute maker and composer.

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* Johann Georg Albrechtberger becomes Kapellmeister in Vienna.

* Johann Gottlob Schneider becomes secretary to Richard François Philippe Brunck.

* Johann Elias Schlegel becomes secretary to an ambassador at the Danish court.

* Johann Ernst Immanuel Walch becomes professor of rhetoric and poetry at the University of Jena.

* Johann Wenzel Kalliwoda becomes musical director to Prince Karl Egon II of Furstenburg.

* Johann Bayer publishes the star atlas Uranometria, the first to cover the entire celestial sphere, and introducing a new system of star designation which becomes known as the Bayer designation.

* Johann Baptist Cysat, Swiss Jesuit geometer and astronomer and one of Christoph Scheiner's pupils, becomes the first to study a comet through the telescope and gives the first description of the nucleus and coma of a comet.

During his investigation into Farren's suicide, Braun becomes suspicious of Johann Liebert ; he begins looking into the young man ’ s past, and notices a connection to several of his previous cases.

* Wolfgang Amadeus Mozart becomes a pupil of Johann Christian Bach.

* Johann Christian Bach becomes organist of Milan Cathedral.

* Johann Mattheson becomes kapellmeister to the Duke of Holstein.

* Johann Sebastian Bach becomes organist and concert-master at the Weimar court.

* Johann Jacob Bach becomes an oboist in the army of King Charles XII of Sweden, inspiring Johann Sebastian to write a Capriccio on the Absence of His Most Beloved Brother.

* Johann Sebastian Bach becomes a chorister at St. Michael's Church, Lüneburg.

* 1733: Johann Caspar Stoever becomes their ( Lutheran ) pastor