Esperanto is the world's most widely spoken constructed international auxiliary language. Created by the Warsaw-based ophthalmologist L. L. Zamenhof in 1887, it was intended to be a universal second language for international communication, or "the international language". Zamenhof first described the language in Dr. Esperanto's International Language, which he published under the pseudonym Doktoro Esperanto. Early adopters of the language liked the name Esperanto and soon used it to describe his language. The word esperanto translates into English as "one who hopes".
Esperantujo or Esperantio is the Esperanto community; the community of speakers of the Esperanto language and their culture, as well as the places and institutions where the language is used. The term is used "as if it were a country."
L. L. Zamenhof developed Esperanto in the 1870s and '80s. Unua Libro, the first print discussion of the language, appeared in 1887. The number of Esperanto speakers have increased gradually since then, without much support from governments and international organizations. Its use has, in some instances, been outlawed or otherwise suppressed.
The World Esperanto Youth Organization is an organization dedicated to supporting young Esperanto speakers around the world and promote the use of Esperanto. TEJO was founded in 1938 as the Tutmonda Junular-Organizo and took its current name in 1952. In 1956, TEJO became the youth section of the Universal Esperanto Association (UEA). In 1971, the finances and administration of TEJO were fully integrated into those of UEA.
The Universal Esperanto Association, also known as the World Esperanto Association, is the largest international organization of Esperanto speakers, with 5501 individual members in 121 countries and 9215 through national associations and in official relations with the United Nations. In addition to individual members, 70 national Esperanto organizations are affiliated with UEA. Its current president is the professor Duncan Charters. The magazine Esperanto is the main organ used by UEA to inform its members about everything happening in the Esperanto community.
The Esperanto Wikipedia is the Esperanto version of Wikipedia, which was started on 11 May 2001, alongside the Basque Wikipedia. With over 330,000 articles as of January 2023, it is the 36th-largest Wikipedia as measured by the number of articles, and the largest Wikipedia in a constructed language.
The International Youth Congress is the largest annual meeting of young Esperantists in the world. The participants come from all over the world for one week, and they usually number around 300, although there has been a congress with more than 1000 attendees before. The congress takes place in a different country every year and is organized by the World Esperanto Youth Organization, the youth wing of the Universal Esperanto Association. Both the IJK and the World Esperanto Congress take place each summer, usually in consecutive weeks but rarely in the same country.
The International Union of Catholic Esperantists is an organization of Catholic Esperanto speakers. It was founded in 1910 in Paris and is now headquartered in Rome.
The International Academy of Sciences San Marino was a scientific association. It was established in 1983 and had its first convention, SUS 1, around New Year 1984 in the City of San Marino. After the Sammarinese skeleton law on higher education had been passed the academy was officially founded on 13 September 1985, in the presence of the Captains-Regent. Its name uses the constructed international auxiliary language Esperanto.
Esperanto Youth Week is one of the most important Esperanto youth meetings in the world. It is organised by the German Esperanto Youth (GEJ) and the Polish Esperanto Youth (PEJ) at the end of every year in a different city of central Europe, starting 2009-10.
The International League of Esperanto-Speaking Teachers is a non-governmental organization with the goals of teaching respect for humanity, life and nature and seeking to further mutual understanding among peoples. Advocating the spread of Esperanto language and culture, the NGO publishes books and journals, organizes international conferences and administers examinations worldwide to certify the qualifications of Esperanto teachers.
A language festival is a cultural and educational event held by Esperanto and other organizations in different countries around the world. The purpose of language festivals is to teach and provide information about the world's languages to people interested in languages and cultures, and to show the wealth and diversity of language. Language festivals also aim at demonstrating that all languages in the world are equally important and valuable, and that there should be no "major" and "minor" languages, which are ideas broadly promoted by Esperanto-speakers.
FESTO is an annual week-long Esperanto youth meeting organized by Espéranto-Jeunes, the French branch of the Universal Esperanto Association's youth wing TEJO. It is held in a different city every summer and serves as a venue for cultural exchange, offering an occasion for Esperantists from many lands to improve their facility in the Esperanto language. Except in 2009 and 2013, meetings have been held in France.
The World Esperantist Vegetarian Association is a voluntary association of Esperanto-speaking vegetarians. Founded in 1908, the group's working language is Esperanto, and it is the oldest international organization of vegetarians that is currently active. TEVA published a journal, Vegetarano ("Vegetarian") from 1914 to 1932, revived in 2009 as Esperantista Vegetarano, and has also operated a spirited Internet mailing list through Yahoo! Groups since 2005.
La Perdita Generacio, is a Swedish band of musicians who perform Esperanto music.
The Esperanto workers movement has the goal of taking practical advantage of the international language Esperanto for advancing the goals of the labour movement, especially the fight against unrestrained capitalism. It is not only a political movement in the strict sense but also a cultural and educational one. Currently the principal Esperanto associations active in the Esperanto workers movement at the global level are the Sennacieca Asocio Tutmonda and the Internacia Komunista Esperantista Kolektivo, and in a wider sense, the Monda Asembleo Socia.
The following outline is provided as an overview of and topical guide to Esperanto:
