Question: What did both Ivan Bilibin and Mir iskusstva contribute to?
Context: Mir iskusstva (Russian: «Мир искусства» ; ] , "World of Art") was a Russian magazine and the artistic movement it inspired and embodied, which was a major influence on the Russians who helped revolutionize European art during the first decade of the 20th century.  In fact, few Europeans outside Russia actually saw issues of the magazine itself. Mikhail Vasilyevich Nesterov (Russian: Михаи́л Васи́льевич Не́стеров ; 31 May [O.S. 19 May] 1862 , Ufa – 18 October 1942, Moscow) was a Russian and Soviet painter; associated with the Peredvizhniki and Mir Iskusstva.  He was one of the first exponents of Symbolist art in Russia. Stanislav Yulianovich Zhukovsky (Polish: Stanisław Żukowski, Russian: Станислав Юлианович Жуковский ) (1873–1944) was a Polish-Russian painter, and a member of Mir iskusstva. Nikolay Lanceray (Russian: Николай Евгеньевич Лансере , April 26, 1879 in Saint Petersburg – May 6, 1942 in Saratov) was a Russian architect, preservationist, illustrator of books and historian of neoclassical art, biographer of Charles Cameron, Vincenzo Brenna and Andreyan Zakharov.  Lanceray was associated with Mir Iskusstva art circle and was a proponent of Russian neoclassical revival school. Yury Pavlovich Annenkov (Russian: Юрий Павлович Анненков also known as Georges Annenkov); 23 July [O.S. 11 July 1889] 1889 in Petropavlovsk, Akmolinsk Oblast, Russian Empire – 12 July 1974 in Paris, France), was a Russian artist mostly known for his book illustrations and portraits.  He also worked for theatre and cinema (design).  A member of Mir Iskusstva. Yeghishe Martirosi Tadevosyan (Armenian: Եղիշե Թադևոսյան , September 24, 1870, Etchmiadzin — January 22 1936, Tbilisi) was an Armenian painter associated with the Peredvizhniki and Mir Iskusstva movements.  He was awarded the title of "Honored Artist" by the Armenian SSR in 1935. Ivan Yakovlevich Bilibin (Russian: Ива́н Я́ковлевич Били́бин ; ] ; 16 August [O.S. 4 August] 1876 – 7 February 1942) was a 20th-century illustrator and stage designer who took part in the "Mir iskusstva", contributed to the Ballets Russes, co-founded the Union of Russian Painters (Russian: Сою́з ру́сских худо́жников ) and from 1937 was a member of the Artists' Union of the USSR.  Throughout his career, he was inspired by Slavic folklore. L. Tolstoy and Dostoyevsky was a critical essay written by Dmitry Merezhkovsky and published between 1900-1901 in "Mir iskusstva" magazine.  The publication coincided with Leo Tolstoy's excommunication by Most Holy Synod and drew a wide public response.  "L. Tolstoy and Dostoyevsky" is considered the most significant work of Merezhkovsky in the genre of literary research essays. Alexandre Nikolayevich Benois (Russian: Алекса́ндр Никола́евич Бенуа́, also spelled Alexander Benois ; 3 May [O.S. 21 April] 1870 , Saint Petersburg9 February 1960, Paris) was an influential Russian artist, art critic, historian, preservationist, and founding member of "Mir iskusstva" (World of Art), an art movement and magazine.  As a designer for the Ballets Russes under Sergei Diaghilev, Benois exerted what is considered a seminal influence on the modern ballet and stage design. Dmitry Vladimirovich Filosofov (Russian: Дми́трий Влади́мирович Филосо́фов ; 7 April [O.S. 26 March] 1872 , Saint Petersburg – 4 August 1940, Otwock, Poland) was a Russian author, essayist, literary critic, religious thinker, newspaper editor and political activist, best known for his role in the early 1900s influential "Mir Iskusstva" circle and part of quasi-religious "Troyebratstvo" (The Brotherhood of Three), along with two of his closest friends and spiritual allies, Dmitry Merezhkovsky and Zinaida Gippius.
Answer: the artistic movement