Bishop Motiejus Valančius (1801–1875) sponsored the illegal practice of printing Lithuanian books in Lithuania Minor and smuggling them into Lithuania by knygnešiai. He wrote books himself in a rich Samogitian dialect: Palangos Juzė (Juzė from Palanga); the first illustrated book for children in Lithuanian, Vaikų knygelė (Children's book); Žemaičių vyskupystė (Samogitian bishopric). He also urged to resist Russification and to protest against the closing of Catholic churches and monasteries. Valančius was one of the main figures who laid the ground for the Lithuanian National Revival. Antanas Baranauskas (1835–1902) wrote the poem Anykščių šilelis (The Forest/Pinewood of Anykščiai, a programmatic work whose main aim was to uncover the beauty of the Lithuanian language and to demonstrate its suitability for poetry. The poem Anykščių šilelis is considered the most famous syllabic verse in Lithuanian. Baranauskas was also a mathematician and dialectologist and created many Lithuanian mathematical terms. Vaclovas Biržiška (1884–1965) in his monumental 3 volume encyclopedic work Aleksandrynas collected biographies, bibliographies and biobibliographies of Lithuanian writers who wrote in Lithuanian, starting in 1475 and ending in 1865. 370 persons are included in Aleksandrynas. 20th-century literature When the ban against printing in the Lithuanian language using the Latin alphabet was lifted in 1904, Lithuanian writers began to experiment with and adopt elements of various European literary movements such as Symbolism, impressionism and expressionism. The first period of Lithuanian independence (1918–40), in the interwar period, gave rise to literature that explored their society and create characters with deep emotions, as their primary concerns were no longer political. The Keturi vėjai movement began with the publication of Prophet of the Four Winds by the poet Kazys Binkis (1893–1942). This was a rebellion against traditional poetry. The theoretical basis of Keturi vėjai initially was futurism which arrived through Russia from the West; later influences were cubism, dadaism, surrealism, unanimism, and German expressionism. Maironis (1862–1932) is one of the most famous classical Lithuanian poets. He was noted for both dramatic and lyric romantic poetry and has been called “the poet-prophet of the Lithuanian national revival.” He laid the ground for modern Lithuanian poetry. Maironis' poetry was inspired by the nature and ancient history of Lithuania. The names and deeds of the Grand Dukes of Lithuania are often encountered in his verses. The collection of poems Pavasario balsai (Voices of Spring, 1895) is his most notable work. An outstanding figure of the early 20th century was Vincas Krėvė-Mickevičius