Johann Conrad Peyer

died February 29th, 1712

Johann Conrad Peyer was a Swiss anatomist who was a native of Schaffhausen.

Johann Crüger

born April 9th, 1598

Johann Crüger was a German composer of well-known hymns. He was also the editor of the most widely used Lutheran hymnal of the 17th century, Praxis pietatis melica.

Johann David Heinichen

born April 17th, 1683

Johann David Heinichen was a German Baroque composer and music theorist who brought the musical genius of Venice to the court of Augustus II the Strong in Dresden. After he died, Heinichen's music attracted little attention for many years. As a music theorist, he is credited as one of the inventors of the circle of fifths.

Johann Elias Schlegel

born January 28th, 1719

Johann Elias Schlegel was a German critic and dramatic poet.

Johann Ernst Eberlin

born March 27th, 1702

Johann Ernst Eberlin was a German composer and organist whose works bridge the baroque and classical eras. He was a composer of church organ and choral music. Marpurg claims he wrote as much and as rapidly as Alessandro Scarlatti and Georg Philipp Telemann, a claim also repeated by Leopold Mozart - though Eberlin did not live nearly as long as either of those two composers.

Johann Faber of Heilbronn

died February 27th, 1558

Johann Faber of Heilbronn, also known as Johannes Fabri, was a controversial 16th century Catholic preacher.

Johann Friedrich Agricola

born January 4th, 1720

Johann Friedrich Agricola was a German composer, organist, singer, pedagogue, and writer on music. He sometimes wrote under the pseudonym Flavio Anicio Olibrio.

Johann Friedrich Alberti

born January 11th, 1642

Johann Friedrich Alberti was a German composer and organist.

Johann Friedrich Blumenbach

May 11th, 1752 - January 22nd, 1840

Johann Friedrich Blumenbach was a German physician, naturalist, physiologist, and anthropologist. He is considered to be a main founder of zoology and anthropology as comparative, scientific disciplines. He has been called the "founder of racial classifications."

Johann Friedrich Böttger

died March 13th, 1719

Johann Friedrich Böttger was a German alchemist. Böttger was born in Schleiz and died in Dresden. He is normally credited with being the first European to discover the secret of the creation of hard-paste porcelain in 1708, but it has also been claimed that English manufacturers or Ehrenfried Walther von Tschirnhaus produced porcelain first. Certainly, the Meissen factory, established 1710, was the first to produce porcelain in Europe in large quantities and since the recipe was kept a trade secret by Böttger for his company, experiments continued elsewhere throughout Europe.

Johann Friedrich Doles

born April 23rd, 1715

Johann Friedrich Doles was a German composer and pupil of Johann Sebastian Bach.

Johann Friedrich Fasch

born April 15th, 1688

Johann Friedrich Fasch was a German violinist and composer. Much of his music is in the Baroque-Classical transitional style known as galant.

Johann Friedrich Gronovius

died December 28th, 1671

Johann Friedrich Gronovius was a German classical scholar, librarian and critic.

Johann Friedrich Pfaff

December 22nd, 1765 - April 21st, 1825

Johann Friedrich Pfaff was a German mathematician. He was described as one of Germany's most eminent mathematicians during the 19th century. He was a precursor of the German school of mathematical thinking, under which Carl Friedrich Gauss and his followers largely determined the lines on which mathematics developed during the 19th century.They asked Laplace who, in his opinion, was the greatest mathematician of Germany. "It's Pfaff," he answered. - "I thought," the questioner replied, "that Gauss was superior to him." - "But," exclaimed Laplace, "you're asking me who is the greatest mathematician of Germany, and Gauss is the greatest mathematician of Europe."

Johann Friedrich Struensee

died April 28th, 1772

Lensgreve Johann Friedrich Struensee was a German-Danish physician, philosopher and statesman. He became royal physician to the mentally ill King Christian VII of Denmark and a minister in the Danish government. He rose in power to a position of de facto regent of the country, and he tried to carry out widespread reforms. His affair with Queen Caroline Matilda caused a scandal, especially after the birth of a daughter, Princess Louise Augusta, and was the catalyst for the intrigues and power play that caused his downfall and dramatic death.

Johann Geiler von Kaysersberg

born March 16th, 1445

Johann Geiler von Kaysersberg was a priest, considered one of the greatest of the popular preachers of the 15th century. He was closely connected with the Renaissance humanists of Strasbourg, whose leader was the well-known Jakob Wimpfeling (1450–1528), called "the educator of Germany". Like Wimpfeling, Geiler was a secular priest; both fought the ecclesiastical abuses of the age, but not in the spirit of Martin Luther and his adherents. They looked, instead, for salvation and preservation only in the restoration of Christian morals in Church and State through the faithful maintenance of the doctrines of the Church. However the moral reforms of Johann Geiler laid the groundwork for the Protestant reformation in Strasbourg.

Johann Georg Albrechtsberger

born February 3rd, 1736

Johann Georg Albrechtsberger was an Austrian composer, organist, and music theorist, and one of the teachers of Ludwig van Beethoven. He was a friend of Haydn and Mozart.

Johann Georg Gichtel

March 14th, 1638 - January 21st, 1710

Johann Georg Gichtel was a German mystic and religious leader who was a critic of Lutheranism. His followers ultimately separated from this faith.

Johann Georg Graevius

born January 29th, 1632

Johann Georg Graevius was a German classical scholar and critic. He was born in Naumburg, in the Electorate of Saxony.

Johann Georg Pisendel

born December 26th, 1687

Johann Georg Pisendel was a German Baroque violinist and composer who, for many years, led the Court Orchestra in Dresden as concertmaster, then the finest instrumental ensemble in Europe. He was the leading violinist of his time, and composers such as Tomaso Albinoni, Georg Philipp Telemann and Antonio Vivaldi all dedicated violin compositions to him.

Johann Georg Reutter

born April 6th, 1708

Johann Adam Joseph Karl Georg Reutter, during his life known as Georg Reutter the Younger was an Austrian composer. According to David Wyn Jones, in his prime he was "the single most influential musician in Vienna".

Johann Georg Theodor Grässe

born January 21st, 1814

'Johann Georg Theodor Grässe was a German bibliographer and literary historian. He worked in Dresden at the Münzkabinett and also edited the journal Zeitschrift für Museologie und Antiquitätenkunde. He was born in Grimma and died in Niederlössnitz.

Johann Georg Wille

died April 5th, 1808

Johann Georg Wille, or Jean Georges Wille was a German-born copper engraver, who spent most of his life in France. He also worked as an art dealer.

Johann Gottfried Bernhard Bach

born May 11th, 1715

Johann Gottfried Bernhard Bach was a German musician. It is not known whether he composed, and his career as an organist is not in itself notable, but his life throws light on his famous father, the composer Johann Sebastian Bach. Johann Gottfried was the fourth child of Johann Sebastian Bach and Maria Barbara Bach to reach adulthood.

Johann Gottfried Müthel

born January 17th, 1728

Johann Gottfried Müthel was a German composer and noted keyboard virtuoso. Along with C.P.E. Bach, he represented the Sturm und Drang style of composition.

Johann Gottfried Vierling

born January 25th, 1750

Johann Gottfried Vierling was a German organist and composer.

Johann Gottfried Walther

died March 23rd, 1748

Johann Gottfried Walther was a German music theorist, organist, composer, and lexicographer of the Baroque era.

Johann Gottlieb Fichte

died January 27th, 1814

Johann Gottlieb Fichte was a German philosopher who became a founding figure of the philosophical movement known as German idealism, which developed from the theoretical and ethical writings of Immanuel Kant. Recently, philosophers and scholars have begun to appreciate Fichte as an important philosopher in his own right due to his original insights into the nature of self-consciousness or self-awareness. Fichte was also the originator of thesis–antithesis–synthesis, an idea that is often erroneously attributed to Hegel. Like Descartes and Kant before him, Fichte was motivated by the problem of subjectivity and consciousness. Fichte also wrote works of political philosophy; he has a reputation as one of the fathers of German nationalism.

Johann Gottlieb Friedrich von Bohnenberger

died April 19th, 1831

Johann Gottlieb Friedrich von Bohnenberger was a German astronomer born at Simmozheim, Württemberg. He studied at the University of Tübingen. In 1798, he was appointed professor of mathematics and astronomy at the University.

Johann Gottlieb Görner

born April 16th, 1697

Johann Gottlieb Görner was a German composer and organist.

Johann Gottlob Lehmann (scientist)

died January 22nd, 1767

Johann Gottlob Lehmann was a German mineralogist and geologist noted for his work and research contributions to the geologic record leading to the development of stratigraphy.

Johann Hartmann

born December 24th, 1726

Johann Ernst Hartmann was a Danish classical composer and violinist. He is remembered in particular for his two operas on texts by Johannes Ewald in which he helped creating a national musical style. The first of these, Balders død, builds on the old Nordic mythology and uses dark colours when depicting the old Gods and Valkyries. The second, Fiskerne, describes contemporary fishermen’s lives, and uses melodies inspired by the Scandinavian folk style.
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