title: Czech National Symphony Orchestra
context: The Czech National Symphony Orchestra (ČNSO) (Czech: Český národní symfonický orchestr) is a symphony orchestra in Prague in the Czech Republic.  It was established in 1993 by trumpet player Jan Hasenöhrl. Libor Pešek is the orchestra's chief conductor, having taken over in 2007 from American conductor Paul Freeman who commenced with the orchestra in 1996.[2]
question: When was the National Symphony Orchestra formed?
answers: 1993