Sergey Prokudin-Gorsky
Sergey Mikhaylovich Prokudin-Gorsky (, ;  – September 27, 1944) was a Russian chemist and photographer. He is best known for his pioneering work in colour photography and his effort to document early 20th-century Russia.
Boris Godunov (opera)
"Boris Godunov" was performed 21 times during the composer's lifetime, and 5 times after his death (in 1881) before being withdrawn from the repertory on 8 November 1882. When Mussorgsky's subsequent opera "Khovanshchina" was rejected for production in 1883, the Imperial Opera Committee reputedly said: "One radical opera by Mussorgsky is enough." "Boris Godunov" did not return to the stage of the Mariinsky Theatre until 9 November 1904, when the Rimsky-Korsakov edition was presented under conductor Feliks Blumenfeld with bass Feodor Chaliapin in the title role.