Which opera was produced first, Norma or Rise and Fall of the City of Mahagonny?
Norma (opera): Norma (] ) is a "tragedia lirica" or opera in two acts by Vincenzo Bellini with libretto by Felice Romani after "Norma, ou L'infanticide" ("Norma, or The Infanticide") by Alexandre Soumet. Norma (opera):  It was first produced at La Scala in Milan on 26 December 1831. Rise and Fall of the City of Mahagonny: Rise and Fall of the City of Mahagonny (German: Aufstieg und Fall der Stadt Mahagonny ) is a political-satirical opera composed by Kurt Weill to a German libretto by Bertolt Brecht. Rise and Fall of the City of Mahagonny:  It was first performed on 9 March 1930 at the Neues Theater in Leipzig.
Norma