Adams's first opera was "Nixon in China" (1987), which recounts Richard Nixon's 1972 visit to China and was the first of many collaborations with theatre director Peter Sellars. Though the work's reception was initially mixed, it has become increasingly favored since its premiere, receiving performances worldwide. Begun soon after "Nixon in China", the opera "The Death of Klinghoffer" (1991) was based on the Palestinian Liberation Front's 1985 hijacking and murder of Leon Klinghoffer and incited considerable controversy over its content and choice of subject matter. His next notable works include a Chamber Symphony (1992), a Violin Concerto (1993), the opera-oratorio "El Niño" (2000), the orchestral piece "My Father Knew Charles Ives" (2003) and the six-string electric violin concerto "The Dharma at Big Sur". Adams won a Pulitzer Prize for Music for "On the Transmigration of Souls" (2002), a piece for orchestra and chorus commemorating the victims of the September 11, 2001, attacks. Continuing with historical subjects, Adams wrote the opera "Doctor Atomic" (2005), based on J. Robert Oppenheimer, the Manhattan Project, and the building of the first atomic bomb. Later operas include "A Flowering Tree" (2006) and "Girls of the Golden West" (2017).