Argentine theatre traces its origins to Viceroy Juan José de Vértiz y Salcedo's creation of the colony's first theatre, ''La Ranchería'', in 1783. In this stage, in 1786, a tragedy entitled ''Siripo'' had its premiere. ''Siripo'' is now a lost work (only the second act is conserved), and can be considered the first Argentine stage play, because it was written by Buenos Aires poet Manuel José de Lavardén, it was premiered in Buenos Aires, and its plot was inspired by an historical episode of the early colonization of the Río de la Plata Basin: the destruction of Sancti Spiritu colony by aboriginals in 1529. ''La Ranchería'' theatre operated until its destruction in a fire in 1792. The second theatre stage in Buenos Aires was Teatro Coliseo, opened in 1804 during the term of Viceroy Rafael de Sobremonte. It was the nation's longest-continuously operating stage. The musical creator of the Argentine National Anthem, Blas Parera, earned fame as a theatre score writer during the early 19th century. The genre suffered during the regime of Juan Manuel de Rosas, though it flourished alongside the economy later in the century. The national government gave Argentine theatre its initial impulse with the establishment of the Colón Theatre, in 1857, which hosted classical and operatic, as well as stage performances. Antonio Petalardo's successful 1871 gambit on the opening of the Teatro Opera, inspired others to fund the growing art in Argentina.