Encyclopedias in Esperanto
Encyclopedias in Esperanto are Esperanto-language encyclopedias. There have been several different attempts of creating an encyclopedia of all Esperanto topics.
History
In 1913, Petro Stojan proposed the Universal Monograph Encyclopedia, which would be continuously published with separate monographs for each subject. The first five monographs were published at that time.In 1917, Vladimír Szmurlo published another encyclopedia in Petrograd called Ariadne's Thread, with a few references as "A first try of an Encyclopedia of Esperantism; with a firm belief that out of that... seed will grow a huge tree of the Universal Esperanto Encyclopedia." The first pages were printed in Riga. Due to military circumstances, the next pages of the book appeared infrequently, only after the letter 'E', and with very short content.