La Scala is an opera house in Milan, Italy. The theatre was inaugurated on 3 August 1778 and was originally known as the Nuovo Regio Ducale Teatro alla Scala (New Royal-Ducal Theatre alla Scala). The premiere performance was Antonio Salieri’s Europa. Most of Italy’s greatest operatic artists, and many of the finest singers from around the world, have appeared at La Scala. The theatre is regarded as one of the leading opera and ballet theatres in the world and is home to the La Scala Theatre Chorus, La Scala Theatre Ballet and La Scala Theatre Orchestra. The theatre also has an associate school, known as the La Scala Theatre Academy (Italian: Accademia Teatro alla Scala), which offers professional training for music, dance, stage craft, and stage management. La Scala’s season opens on 7 December, Saint Ambrose’s Day, the feast day of Milan’s patron saint. All performances must end before midnight, and long operas start earlier in the evening when necessary. Amazing original dresses worn by soprano Maria Callas in various ehxibitions, are held at Teatro La Scala.