Question: When was the Danish danseur, choreographer died who once said, "gave the world a new idea of the ballerina in 19th-century Romantic ballets”?

full_context: Document 1: Bruce Darnell: Bruce Darnell (born July 19, 1957) is an American model and choreographer based in Germany.
Document 2: Franca Florio, regina di Palermo: Franca Florio, regina di Palermo is a full-length narrative ballet in two acts, with music by Lorenzo Ferrero and scenario, choreography and staging by Luciano Cannito. A commission by the Teatro Massimo in Palermo, the work premiered there on 22 November 2007 with Carla Fracci in the title role, and was restaged in June 2010.
Document 3: Erik Bruhn: Erik Belton Evers Bruhn (3 October 1928 – 1 April 1986) was a Danish danseur, choreographer, artistic director, actor, and author.
Document 4: Bill Evans (dancer): Bill Evans is a choreographer, performer, teacher, administrator, writer and movement analyst. More than 250 of Evans' works have been performed by professional and pre-professional ballet, modern dance and tap dance companies throughout the United States, including his own Bill Evans Dance Company, Repertory Dance Theatre, Concert Dance Company of Boston, Ballet West, Ririe-Woodbury Dance Company, Ruth Page Chicago Ballet, Pacific Northwest Ballet, North Carolina Dance Theater, Stars of American Ballet at Jacob's Pillow, Chicago Tap Theatre, Rochester City Ballet, FuturPointe Dance and many other companies. He has also created works for companies in Canada, Mexico and New Zealand.
Document 5: Frank Andersen: Frank Andersen (born 15 April 1953 in Copenhagen) is a former Danish ballet dancer who was twice artistic director of the Royal Danish Ballet. He has been an influential supporter of the Danish choreographer August Bournonville.
Document 6: Rudolf Nureyev: Rudolf Khametovich Nureyev (Bashkir: Рудольф Хәмит улы Нуриев , Tatar: Рудольф Хәмит улы Нуриев , Russian: Рудо́льф Хаме́тович Нуре́ев ; 17 March 1938 – 6 January 1993) was a Soviet ballet dancer and choreographer. He was director of the Paris Opera Ballet from 1983 to 1989 and its chief choreographer until October 1992.
Document 7: Carla Fracci: Carla Fracci (] ; born 20 August 1936, Milan) is an Italian ballet dancer and actress. Thanks to her extensive career and her acclaimed interpretation of several classical romantic ballets such as "La Sylphide", Fracci became one of the most experienced and recognized interpreters of Romantic ballets. “As Erik Bruhn once said, [Fracci] gave the world a new idea of the ballerina in 19th-century Romantic ballets.” Her career highlights include "Nijinsky", "Giselle" (American Ballet Theatre), Complete Bell Telephone Hour Performances: Erik Bruhn 1961-1967.
Document 8: Margot Fonteyn: Dame Margot Fonteyn de Arias, DBE (18 May 191921 February 1991), was an English ballerina. She spent her entire career as a dancer with the Royal Ballet, eventually being appointed "Prima Ballerina Assoluta" of the company by Queen Elizabeth II.
Document 9: Leon Danielian: Leon Danielian (31 October 1920 – 8 March 1997) was an American ballet dancer, teacher, choreographer, and educator. As guest artist with ballet companies around the world, he became one of the first American male dancers to achieve international recognition.
Document 10: La Scala Theatre Ballet: The La Scala Theatre Ballet (Italian: "Corpo di ballo del Teatro alla Scala" ) is the resident classical ballet company at La Scala in Milan, Italy. One of the oldest and most renowned ballet companies in the world, the company predates the theatre, but was officially founded at the inauguration of La Scala in 1778. Many leading dancers have performed with the company, including Mara Galeazzi, Alessandra Ferri, Viviana Durante, Roberto Bolle and Carla Fracci. The official associate school of the company is the La Scala Theatre Ballet School (Italian: "Scuola di Ballo del Teatro alla Scala" ), a constituent of the La Scala Theatre Academy (Italian: "Accademia Teatro alla Scala" ).
Document 11: Marie Taglioni: Marie Taglioni (23 April 1804 – 22 April 1884) was a ballet dancer of the Romantic ballet era, a central figure in the history of European dance. She was one of the most celebrated ballerinas of the romantic ballet, which was cultivated primarily at Her Majesty's Theatre in London, and at the Théâtre de l'Académie Royale de Musique of the Paris Opera Ballet. She is credited with (though not confirmed) being the first ballerina to truly dance en pointe.
Document 12: Bob Fosse: Robert Louis Fosse (June 23, 1927 – September 23, 1987) was an American dancer, musical theatre choreographer, director, screenwriter, film director and actor.
Document 13: Roberto Bolle: Roberto Bolle (Casale Monferrato, March 26, 1975) is an Italian danseur. He is currently a "principal dancer" with the American Ballet Theatre and a principal dancer "étoile" at La Scala Theatre Ballet. Bolle also dances regularly as a guest artist with the world’s leading companies, including The Royal Ballet, the Mariinsky Ballet, the Bolshoi Ballet and the Paris Opera Ballet.
Document 14: Bruno Tonioli: Bruno Tonioli (] ; born 25 November 1955) is an Italian choreographer, dancer, and TV personality.
Document 15: Prima ballerina assoluta: Prima ballerina assoluta is a title awarded to the most notable of female ballet dancers. To be recognised as a "prima ballerina assoluta" is a rare honour, traditionally reserved only for the most exceptional dancers of their generation. Originally inspired by the Italian ballet masters of the early Romantic ballet, and literally meaning "absolute first ballerina", the title was bestowed on a prima ballerina who was considered to be exceptionally talented, above the standard of other leading ballerinas. The title is very rarely used today and recent uses have typically been symbolic, either in recognition of a prestigious international career, or for exceptional service to a particular ballet company. There is no universal procedure for designating who may receive the title, which has led to dispute in the ballet community over who can legitimately claim it. It is usually a ballet company that bestows the title, however some dancers have had the title officially sanctioned by a government or head of state, sometimes for political rather than artistic reasons. Less common is for a dancer to become identified as a "prima ballerina assoluta" as a result of public and critical opinion.
ground_truth: 1 April 1986