Don Quichotte ("Don Quixote") is an opera in five acts by Jules Massenet to a French libretto by Henri Caïn.
 It was first performed on 19 February 1910 at the Opéra de Monte-Carlo.
Orpheus is a symphonic poem written by Franz Liszt in 1853-4.
 He numbered it No. 4 in the cycle of 12 he wrote during his time in Weimar, Germany.
 It was first performed on 16 February 1854, conducted by the composer, as an introduction to the first Weimar performance of Christoph Willibald Gluck's opera "Orfeo ed Euridice".
 The performance helped celebrate the birthday of Weimar's Grand Duchess Maria Pavlovna, who was an amateur musician and a staunch supporter of Liszt at Weimar.
Don Quichotte auf der Hochzeit des Comacho ("Don Quixote at Camacho's Wedding"), TVWV 21:32, is a one-act comic serenata by Georg Philipp Telemann.
 The libretto by the student poet Daniel Schiebeler is based on of Cervantes's novel "Don Quixote".
 The opera premiered on 5 November 1761 in Hamburg.
 When first performed, it was given the title: "Don Quichotte auf der Hochzeit des Comacho "; later it was also known as "Don Quixote der Löwenritter " (Don Quixote, the Knight of the Lions).
L'Orfeo (SV 318) (] ), sometimes called La favola d'Orfeo ] , is a late Renaissance/early Baroque "favola in musica", or opera, by Claudio Monteverdi, with a libretto by Alessandro Striggio.
 It is based on the Greek legend of Orpheus, and tells the story of his descent to Hades and his fruitless attempt to bring his dead bride Eurydice back to the living world.
 It was written in 1607 for a court performance during the annual Carnival at Mantua.
 While Jacopo Peri's "Dafne" is generally recognised as the first work in the opera genre, and the earliest surviving opera is Peri's "Euridice", "L'Orfeo" is the earliest that is still regularly performed.
Euridice is an opera in a prologue and one act by the Italian composer Giulio Caccini.
 The libretto, by Ottavio Rinuccini, had already been set by Caccini's rival Jacopo Peri in 1600.
 Caccini's version of "Euridice" was first performed at the Pitti Palace, Florence on 5 December 1602.
 Caccini hurriedly prepared the score for the press and published it six weeks before Peri's version appeared.
L'anima del filosofo, ossia Orfeo ed Euridice ("The Soul of the Philosopher, or Orpheus and Euridice"), Hob.
 28/13, is an opera in Italian in four acts by Joseph Haydn, the last he ever wrote.
 The libretto, by Carlo Francesco Badini, is based on the myth of Orpheus and Euridice as told in Ovid's "Metamorphoses".
 Composed in 1791, the opera was never performed during Haydn's lifetime.
Prosper-Didier Deshayes (mid 18th century – 1815) was an opera composer and dancer who lived and worked in France.
 In 1764 he was a balletmaster at the Comédie-Française.
 By 1774 he had become an assistant ("adjoint") at the Paris Opéra.
 His first opera "Le Faux serment ou La Matrone de Gonesse", a "comédie mêlée d'ariettes" in two acts, was first performed on 31 December 1785 at the Théâtre des Beaujolais in Paris and became a popular success.
 He went on to have another 18 works performed at various venues in Paris, but only two, "La faut serment" and "Zélie, ou Le mari à deux femmes", a 3-act "drame" first performed at the Salle Louvois on 29 October 1791, were ever published as musical scores.
 He also participated in the collaborative Revolutionary opera "Le congrès des rois", a 3-act "comédie mêlée d'ariettes", which combined music written by Deshayes and 11 other composers and was first performed by the Opéra-Comique at the Salle Favart on 26 February 1794.
 He died in Paris.
Allen Moyer (born 1958) is an American set designer particularly known for his work in operas and Broadway musicals.
 He grew up in Schuylkill Haven, Pennsylvania and holds a BA from the Pennsylvania State University and a MFA degree from New York University's Tisch School of the Arts where he studied under John Conklin.
 His designs have appeared in celebrated productions at the New York City Opera, the San Francisco Opera, the Santa Fe Opera, the Opera Theatre of Saint Louis, and the Seattle Opera.
 He notably staged the world premiere of Stewart Wallace's "Harvey Milk" at the Houston Grand Opera in 1995 and the world premiere of Ricky Ian Gordon's "The Grapes of Wrath" at the Minnesota Opera in 2007.
 He designed his first set for the Metropolitan Opera for their new production of Gluck's "Orfeo ed Euridice" which premiered on May 2, 2007.
Euridice (also Erudice or Eurydice) is an opera by Jacopo Peri, with additional music by Giulio Caccini.
 It is the earliest surviving opera, Peri's earlier "Dafne" being lost.
 (Caccini wrote his own "Euridice" even as he supplied music to Peri's opera, published this version before Peri's was performed, in 1600, and got it staged two years later.)
 The libretto by Ottavio Rinuccini is based on books X and XI of Ovid's "Metamorphoses"
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.
 It belongs to the genre of the "azione teatrale", meaning an opera on a mythological subject with choruses and dancing.
 The piece was first performed at the Burgtheater in Vienna on 5 October 1762 in the presence of Empress Maria Theresa.
 "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.

Question: Which opera was first performed, Don Quichotte or Euridice?
Answer: Euridice