Johann Friedrich Ludwig Christoph Jahn (German pronunciation: [ˈjoːhan ˈfʁiːdʁɪç ˈluːtvɪç ˈkʁɪstɔf ˈjaːn]; 11 August 1778 – 15 October 1852) was a German gymnastics educator and nationalist whose writing is credited with the founding of the German gymnastics (Turner) movement, first realized at Volkspark Hasenheide in Berlin, the origin of modern sports clubs, as well as influencing the German Campaign of 1813, during which a coalition of German states effectively ended the occupation by Napoleon's First French Empire. His admirers know him as "Turnvater Jahn", roughly meaning "Father of Gymnastics Jahn". Jahn invented the parallel bars, rings, high bar, the pommel horse and the vault horse.
Jahn was born in the village of Lanz in Brandenburg, Prussia. He studied theology and philology from 1796 to 1802 at the universities in Halle, Göttingen, and Greifswald. After the Battle of Jena–Auerstedt in 1806, he joined the Prussian army. In 1809, he went to Berlin where he became a teacher at the Gymnasium zum Grauen Kloster and at the Plamann School.
Brooding upon what he saw as the humiliation of his native land by Napoleon, Jahn conceived the idea of restoring the spirits of his countrymen by the development of their physical and moral powers through the practice of gymnastics. The first Turnplatz, or open-air gymnasium, was opened by Jahn in Hasenheide in the south of Berlin in 1811, and the Turnverein (gymnastics association) movement spread rapidly. Young gymnasts were taught to regard themselves as members of a kind of guild for the emancipation of their fatherland. The nationalistic spirit was nourished to a significant degree by the writings of Jahn.
In early 1813 Jahn took an active part in the formation of the famous Lützow Free Corps, a volunteer force in the Prussian army fighting Napoleon. He commanded a battalion of the corps, but he was often employed in the secret service during the same period. After the war, he returned to Berlin, where he was appointed state teacher of gymnastics, and he took on a role in the formation of the student patriotic fraternities, or Burschenschaften, in Jena.
A man of a populistic nature, rugged, eccentric and outspoken, Jahn often came into conflict with the authorities. The authorities eventually realized he aimed at establishing a united Germany and that his Turner schools were political and liberal clubs. The conflict resulted in the closing of the Turnplatz in 1819 and Jahn's arrest. Kept in semi-confinement successively at Spandau, Küstrin, and at the fortress in Kolberg until 1824, he was sentenced to imprisonment for two years. The sentence was reversed in 1825, but he was forbidden to live within ten miles of Berlin.
He therefore took up residence at Freyburg on the Unstrut, where he remained until his death, except for a short period in 1828, when he was exiled to Kölleda on a charge of sedition. While at Freyburg, he received an invitation to become professor of German literature at Cambridge, Massachusetts, which he declined, saying that "deer and hares love to live where they are most hunted."
In 1840, Jahn was decorated by the Prussian government with the Iron Cross for bravery in the wars against Napoleon. In the spring of 1848, he was elected by the district of Naumburg to the German National Parliament. Jahn died in 1852 in Freyburg, where a monument was erected in his honor in 1859.
Jahn popularized the four Fs motto "frisch, fromm, fröhlich, frei" ("fresh, pious, cheerful, free") in the early 19th century.
Among his works are the following:
Bereicherung des hochdeutschen Sprachschatzes (Leipzig, 1806),
Deutsches Volkstum (Lübeck, 1810),
Runenblätter (Frankfurt, 1814),
Die Deutsche Turnkunst (Berlin, 1816)
Neue Runenblätter (Naumburg, 1828),
Merke zum deutschen Volkstum (Hildburghausen, 1833), and
Selbstverteidigung (Leipzig, 1863).
A complete edition of his works appeared at Hof in 1884–1887. See the biography by Schultheiss (Berlin, 1894), and Jahn als Erzieher, by Friedric (Munich, 1895).
Contribution to physical education