Question: Which opera was composed first, Wozzeck or Boris Godunov?

Context paragraphs:
Jerome Hines: Jerome A. Hines (November 8, 1921 – February 4, 2003) was an American operatic bass who performed at the Metropolitan Opera from 1946-87.  Standing 6'6", his stage presence and stentorian voice made him ideal for such roles as Sarastro in "The Magic Flute", Mephistopheles in "Faust", Ramfis in "Aida", the Grand Inquisitor in "Don Carlos", the title role of "Boris Godunov" and King Mark in "Tristan und Isolde".

Boris Godunov (play): Boris Godunov (Russian: Борис Годунов , Borís Godunóv; variant title: "Драматическая повесть, Комедия o настоящей беде Московскому государству, o царе Борисе и о Гришке Отрепьеве", "A Dramatic Tale, The Comedy of the Distress of the Muscovite State, of Tsar Boris, and of Grishka Otrepyev") is a closet play by Alexander Pushkin.  It was written in 1825, published in 1831, but not approved for performance by the censor until 1866.  Its subject is the Russian ruler Boris Godunov, who reigned as Tsar from 1598 to 1605.  It consists of 25 scenes and is written predominantly in blank verse.

Boris Godunov (opera): Boris Godunov (Russian: Борис Годунов , "Borís Godunóv") is an opera by Modest Mussorgsky (1839–1881).  The work was composed between 1868 and 1873 in Saint Petersburg, Russia.  It is Mussorgsky's only completed opera and is considered his masterpiece.  Its subjects are the Russian ruler Boris Godunov, who reigned as Tsar (1598 to 1605) during the Time of Troubles, and his nemesis, the False Dmitriy (reigned 1605 to 1606).  The Russian-language libretto was written by the composer, and is based on the drama "Boris Godunov" by Aleksandr Pushkin, and, in the Revised Version of 1872, on Nikolay Karamzin's "History of the Russian State".

Blanche Thebom: Blanche Thebom (September 19, 1915March 23, 2010) was an American operatic mezzo-soprano, voice teacher, and opera director.  She was part of the first wave of American opera singers that had highly successful international careers.  In her own country she had a long association with the Metropolitan Opera in New York City which lasted 22 years. " Opera News" stated, "An ambitious beauty with a velvety, even-grained dramatic mezzo, Thebom was a natural for opera: she commanded the stage with the elegantly disciplined hauteur of an old-school diva, relishing the opportunity to play "femmes du monde" such as Marina in "Boris Godunov", Herodias and Dalila."

Jozsef Gregor: József Gregor (August 8, 1940 - October 27, 2006) was a renowned Hungarian bass-baritone/basso buffo who enjoyed success first in Hungary, then in France, Belgium and Canada, and finally in the United States.  József Gregor was born in Rákosliget, a small town that is now part of Budapest.  He studied violin for ten years and then, voice at the Liszt Academy in Budapest for one year but did not graduate.  He started singing with the Hungarian Army chorus in 1958 before becoming a soloist in National Theatre of Szeged in Hungary.  In Europe he sang in many opera houses, including Vlaamse Opera and La Scala in Milan.  Beginning in 1989, József Gregor appeared in the US with the Portland Opera and later with the Houston Grand Opera (with Cecilia Bartoli at her American debut) and the Metropolitan Opera (with Bryn Terfel).  His most famous roles included Sarastro, Osmin, Falstaff, Don Pasquale, Dulcamara, Don Basilio, Don Bartolo, Don Magnifico, Boris Godunov, Varlaam, Philip II, Bluebeard etc., roles in masses and oratorios, musicals (Tevye, Caiaphas), and songs.  He died in Szeged of gastric cancer.

Fyodor Petrovich Komissarzhevsky: Fyodor Petrovich Komissarzhevsky (Russian: Фёдор Петро́вич Комиссарже́вский ) (1832 – 14 March 1905) was a Russian opera singer and teacher of voice and stagecraft.  A leading tenor at the Mariinsky Theatre in St. Petersburg, he created many roles in Russian operas, including the Pretender in Mussorgsky's "Boris Godunov" and the title role in Tchaikovsky's "Vakula the Smith".  He had a voice described in the "Grove Book of Opera Singers" as small but with a "velvety timbre" and as a singer was known for not only for his clear diction and beautiful phrasing but also for his skill as an actor.  He was the father of the actress Vera Komissarzhevskaya and the director Theodore Komisarjevsky.

Boris Godunov (1989 film): Boris Godounov (aka Boris Godunov) is a 1989 film based on the opera of the same name by Modest Mussorgsky, but also the play of Alexander Pushkin.

Wozzeck: Wozzeck (] ) is the first opera by the Austrian composer Alban Berg.  It was composed between 1914 and 1922 and first performed in 1925.  The opera is based on the drama "Woyzeck", which was left incomplete by the German playwright Georg Büchner at his death.  Berg attended the first production in Vienna of Büchner's play on 5 May 1914, and knew at once that he wanted to base an opera on it.  From the fragments of unordered scenes left by Büchner, Berg selected fifteen to form a compact structure of three acts with five scenes each.  He adapted the libretto himself, retaining "the essential character of the play, with its many short scenes, its abrupt and sometimes brutal language, and its stark, if haunted, realism..."

Loretta Di Franco: Loretta Di Franco is an American operatic soprano who is chiefly known for her more than 900 performances at the Metropolitan Opera from 1961-1995.  Originally a member of the Met's opera chorus, she eventually was promoted to singing small comprimario roles beginning with one of the pages in Wagner's "Tannhäuser" and the peasant girl in "The Marriage of Figaro" in 1961.  She went on to win the Metropolitan Opera National Council Auditions in 1965 which led to her first substantial role, Chloe in "The Queen of Spades".  She continued to appear annually at the Met for the next 30 years, performing both leading and supporting roles.  Some of the parts she performed at the Met included Annina in "La traviata", both the Aunt and Barena in Janáček's "Jenůfa", Barbarina and Marcellina in "The Marriage of Figaro", Berta in "The Barber of Seville", Countess Ceprano in "Rigoletto", the Dew Fairy and the Sandman in "Hansel and Gretel", Feklusa in "Káťa Kabanová", the First Lady in "The Magic Flute", the Flower Seller in Britten's "Death in Venice", Frasquita in "Carmen", Gerhilde in "Die Walküre", Giannetta in "L'elisir d'amore", Helen in "Mourning Becomes Electra", Ines in "Il trovatore", Jouvenot in "Adriana Lecouvreur", Kate Pinkerton in "Madama Butterfly", Laura in "Luisa Miller", Lauretta in "Gianni Schichi", Lisa in "La sonnambula", Marianne in "Der Rosenkavalier", Marthe in "Faust", Musetta in "La bohème", Oscar in "Un ballo in maschera", Samaritana in "Francesca da Rimini", Woglinde in both "Das Rheingold" and "Götterdämmerung", Xenia in "Boris Godunov", Zerlina in "Don Giovanni", and title role in "Lucia di Lammermoor".  In 1991 she created the role of the Woman with Child in the world premiere of John Corigliano's "The Ghosts of Versailles".

Boris Godunov (1986 film): Boris Godunov (Russian: Борис Годунов ) is a 1986 drama film directed by and starring Sergei Bondarchuk.  It is an adaptation of the play "Boris Godunov", written by Alexander Pushkin.  The picture was co-produced by the Soviet Union, Poland, Czechoslovakia, and West Germany.  It was entered into the 1986 Cannes Film Festival.

Supporting paragraphs: Wozzeck Boris Godunov (opera)
Answer: Boris Godunov