composed by Giacomo Puccini (1856-1924)
- based on a stage version by D. Belasco of a magazine story entitled Madam Butterfly
- by the American author John Luther Long.
- adapted as a libretto by Luigi Illica & Giuseppe Giacosa
- music by Giacomo Puccini
- the (important!) publisher was Giulio Ricordi
- first performed (La Scala, Milan) Feb 17, 1904; revised version first performed
(Brescia) May 28, 1904