Ermanno Wolf-Ferrari, Italian composer and educator (born 1876)

Ermanno Wolf-Ferrari was an Italian composer and teacher. He is best known for his comic operas such as Il segreto di Susanna (1909). A number of his works were based on plays by Carlo Goldoni, including Le donne curiose (1903), I quatro rusteghi (1906) and Il campiello (1936).

January 21 is the 21st day of the year in the Gregorian calendar; 344 days remain until the end of the year.