late Romantic era. Operetta in German Offenbach was unabashed about spreading operetta around the continent. In 1861, he staged some of his recent works at the Carltheater in Vienna, which paved the way for Austrian and German composers. Soon, Vienna became the epicenter of operetta productions. It is because of the Viennese operetta, not the French, that the term is used to describe a full-length work. Additionally, after the Prussian defeat in 1866, operetta became the sign of a new age in Austria, marked by modernity and industrialization. Austria–Hungary The most significant composer of operetta in the German language was the Austrian Johann Strauss II (1825–1899). Strauss was recruited from the dance hall and introduced a distinct Viennese style to the genre. Strauss was highly influenced by the work of Offenbach, so much so that he collaborated with many of Offenbach’s librettists for his most popular works. His operetta, Die Fledermaus (1874), became the most performed operetta in the world, and remains his most popular stage work. In all, Strauss wrote 16 operettas and one opera, most with great success when first premiered. Strauss’s satire was often generic, unlike Offenbach who commented on real-life matters Strauss's operettas, waltzes, polkas, and marches often have a strongly Viennese style, and his popularity causes many to think of him as the national composer of Austria. The Theater an der Wien never failed to draw huge crowds when his stage works were first performed. After many of the numbers the audience would call noisily for encores. Franz von Suppé, also known as Francesco Ezechiele Ermenegildo, Cavaliere Suppé-Demelli, was born in 1819 and his fame rivals that of Offenbach. Suppé was a leading composer and conductor in Vienna and most known for his operetta Leichte Kavallerie (1866), Fatinitza (1876), and Boccaccio (1879) Suppé was a contemporary to Strauss and composed over 30 operettas 180 farces, ballets and other stage works. Recently, most of his works have been lost into obscurity, many of them have been reprised within films, cartoons, advertisements and so on. Both Strauss and Suppé are considered to be the most notable composers of the Golden Age of Viennese operetta. Following the death of Johann Strauss and his contemporary, Franz von Suppé, Franz Lehár was the heir apparent. Lehar is widely considered the leading operetta composer of the 20th century and his most successful operetta, Die lustige Witwe (The Merry Widow), is one