Which opera premiered first, Der Freischütz or Orfeo ed Euridice?
Der Freischütz:  It premiered on 18 June 1821 at the Schauspielhaus Berlin. Orfeo ed Euridice: Orfeo ed Euridice (French version: Orphée et Eurydice ; English: "Orpheus and Eurydice") is an opera composed by Christoph Willibald Gluck based on the myth of Orpheus, set to a libretto by Ranieri de' Calzabigi. Orfeo ed Euridice:  "Orfeo ed Euridice" is the first of Gluck's "reform" operas, in which he attempted to replace the abstruse plots and overly complex music of "opera seria" with a "noble simplicity" in both the music and the drama.
i don't know