A Pallas nagy lexikona (Pallas's Great Lexicon) was the first Hungarianencyclopedia which was not a translation from other languages. It was published by the Pallas Literary and Press Corporation between 1893 and 1897. The encyclopedia comprised 16 volumes, 150 000 articles, and it was the work of 300 authors.
In 1911 the company published under the title Révai Nagy Lexikon. In the 20th century in Hungary it achieved great popularity. The latest edition was published in 1935 in 21 volumes. In 1998 Arcanum Adatbázis Kft encyclopedia completely digitized and sold on CD-carriers.