Boris Godunov (opera) Russian State". Among major operas, "Boris Godunov" shares with Giuseppe Verdi's "Don Carlos" (1867) the distinction of having an extremely complex creative history, as well as a great wealth of alternative material. The composer created two versions—the Original Version of 1869, which was rejected for production by the Imperial Theatres, and the Revised Version of 1872, which received its first performance in 1874 in Saint Petersburg. "Boris Godunov" has seldom been performed in either of the two forms left by the composer, frequently being subjected to cuts, recomposition, re-orchestration, transposition of scenes, or conflation of the original and revised versions.
Boris Godunov (opera) finished in 1872 (vocal score, 14 December 1871; full score 23 June 1872), and submitted to the Imperial Theatres in the autumn. Most Mussorgsky biographers claim that the directorate of the Imperial Theatres also rejected the revised version of "Boris Godunov", even providing a date: 6 May 1872 (Calvocoressi), or 29 October 1872 (Lloyd-Jones). Recent researchers point out that there is insufficient evidence to support this claim, emphasizing that in his revision Mussorgsky had rectified the only objection the directorate is known to have made. In any case, Mussorgsky's friends took matters into their own hands, arranging the performance of