Jena (pronunciation: [ˈjeːna] is a German university city and the second largest city (109,527 inhabitants end 2015) in Thuringia. Jena is a centre of education and research; the Friedrich Schiller University was founded in 1558. Furthermore, there are many institutes of the leading German research societies. Between 1790 and 1850, Jena was a focal point of the German Vormärz as well as of the student liberal and unification movement and German Romanticism. Notable persons of this period in Jena were Friedrich Schiller, Johann Gottlieb Fichte, Georg Wilhelm Friedrich Hegel, Novalis and August Wilhelm Schlegel. For most of the 20th century, Jena was a world centre of the optical industry around companies like Carl Zeiss, Schott and Jenoptik (since 1990). Jena lies in a hilly landscape in the east of Thuringia, within the wide valley of the Saale river.
Postmark in Germany
Meter cancels (all periods)
Postmarks in the German Democratic Republic
07 October 1949 - 02 October 1990, district of Gera
Postmarks in German Empire
Postmark in North German Confederation
Since 1 January 1868.
Postmarks by Thurn und Taxis
Kreis JENA used a code 234 in the Principality of Sachsen-Weimar-Eisenach.