repa, and prekmurska gibanica pastry. Prosciutto () is a delicacy of the Slovene Littoral. The nut roll () has become a symbol of Slovenia, especially among the Slovene diaspora in the United States. Soups were added to the traditional one-pot meals and various kinds of porridge and stew only in relatively recent history. Each year since 2000, the Roasted Potato Festival has been organized by the Society for the Recognition of Roasted Potatoes as a Distinct Dish, attracting thousands of visitors. Roasted potatoes, which have been traditionally served in most Slovenian families only on Sundays—preceded by a meat-based soup, such as beef or chicken soup—have been depicted on a special edition of post marks by the Post of Slovenia on 23 November 2012. The best known sausage is kranjska klobasa. Slovenia is also the home of the world's oldest vine, which is 400 years old. Slovenia has been awarded the European Region of Gastronomy title for the year 2021. Dance Historically the most notable Slovenian ballet dancers and choreographers were Pino Mlakar (1907‒2006), who in 1927 graduated from the Rudolf Laban Choreographic Institute, and there met his future wife, balerina Maria Luiza Pia Beatrice Scholz (1908‒2000). Together they worked as a leading dancer and a choreographer in Dessau (1930–1932), Zürich (1934–1938), and State opera in München (1939‒1944). Their plan to build a Slovenian dance centre at Rožnik Hill after the World War II was supported by the minister of culture, Ferdo Kozak, but was cancelled by his successor. Pino Mlakar was also a full professor at the Academy for Theatre, Radio, Film and Television (AGRFT) of the University of Ljubljana. Between 1952 in 1954 they again led State opera ballet in Munich. A Mary Wigman modern dance school was founded in the 1930s by her student, Meta Vidmar, in Ljubljana. Festivals, book fairs, and other events A number of music, theater, film, book, and children's festivals take place in Slovenia each year, including the music festivals Ljubljana Summer Festival and Lent Festival, the stand-up comedy Punch Festival, the children's Pippi Longstocking Festival, and the book festivals Slovene book fair and Frankfurt after the Frankfurt. The most notable music festival of Slovene music was historically the Slovenska popevka festival. Between 1981 and 2000 the Novi Rock festival was notable for bringing rock music across Iron curtain from the West to the Slovenian and then Yugoslav audience. The long tradition of jazz