When was a ballet company founded who's most popular performance is a two-act ballet choreographed by Marius Petipa and Lev Ivanov?
Carolina Ballet: Carolina Ballet is a ballet company founded in 1997 which performs primarily in Raleigh, North Carolina and throughout the state. The Nutcracker: The Nutcracker (Russian: Щелкунчик, Балет-феерия / "Shchelkunchik, Balet-feyeriya"    ; French: "Casse-Noisette, ballet-féerie" ) is a two-act ballet, originally choreographed by Marius Petipa and Lev Ivanov with a score by Pyotr Ilyich Tchaikovsky (op. 71).
1997