Question: Are the operas "La Périchole" and "Mignon" by the same person?
Sentence (from "List of Argentine operas"): Native Argentine opera was to develop much more with the massive European (mainly Italian) immigration in the late 19th century and even more with the opening of the Teatro Colón in 1908 where most of the 20th century operas listed here had their world premieres.
Relevant evidence: No