Friedrich Ludwig Jahn (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 as well as influencing the German Campaign of 1813, during which a coalition of German states effectively ended the occupation of Napoleon's First French Empire.
His admirers know him as Turnvater Jahn, roughly meaning "father of gymnastics" Jahn.
Author: Lithograph Georg Ludwig Engelbach (* 28. Februar 1817, †4. Dezember 1894) Source: zeitgenössische Lithographie, gescannt von APPER/2004, de.Wikipedia License: CC-PD-Mark PD Old