Esperanto is the world's most widely spoken constructed international auxiliary language. Created by the Warsaw-based ophthalmologist L. L. Zamenhof in 1887, it is 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 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."
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 International Energy Agency (IEA) is a Paris-based autonomous intergovernmental organisation, established in 1974, that provides policy recommendations, analysis and data on the entire global energy sector. The 31 member countries and 13 association countries of the IEA represent 75% of global energy demand.
The International Epidemiological Association (IEA) is a worldwide association with more than 2000 members in over 100 different countries, who follow the aims of the association to facilitate communication amongst those engaged in research and teaching of epidemiology throughout the world, and to encourage its use in all fields of health including social, community and preventative medicine. These aims are achieved by holding scientific meetings and seminars, by publication of journals, reports, translations of books, by contact amongst members and by other activities consistent with these aims. Members are accepted without regard to race, religion, sex, political affiliation or country of origin.
The Akademio de Esperanto is an independent body of Esperanto speakers who steward the evolution of said language by keeping it consistent with the Fundamento de Esperanto in accordance with the Declaration of Boulogne. Modeled somewhat after the Académie française and the Real Academia Española, the Akademio was proposed by L. L. Zamenhof, the creator of Esperanto, at the first World Esperanto Congress, and was founded soon thereafter under the name Lingva Komitato. This Committee had a "superior commission" called the Akademio. In 1948, within the framework of a general reorganization, the Language Committee and the Academy combined to form the Akademio de Esperanto.
Sennacieca Asocio Tutmonda is an independent worldwide cultural Esperanto association of a general left-wing orientation. Its headquarters are in Paris. According to Jacques Schram, chairman of the Executive Committee, the membership totalled 881 in 2003. In 2006 SAT had 724 members. In 2015-2016 there were 525.
Esperanto-USA (E-USA) is the largest organization for speakers and supporters of Esperanto in the United States. It was founded in 1952 as the Esperanto League for North America (ELNA) in Sacramento, California. Headquartered in Portland, Maine, Esperanto-USA is a 501(c)(3) nonprofit organization and the U.S. affiliate of the Universal Esperanto Association. Brandon Sowers is President of E-USA, and Hoss Firooznia is Vice-President.
Encyclopedias in Esperanto are Esperanto-language encyclopedias. There have been several different attempts of creating an encyclopedia of all Esperanto topics.
The Australian Esperanto Association (AEA) is a national Esperanto association of Australia. It is affiliated with the Universal Esperanto Association.
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 Canadian Esperanto Association is a registered educational charity whose objective is to advance the education of Esperanto among the Canadian public.
The Skolta Esperanto Ligo (SEL) brings together Esperanto-speaking Scouts from all over the world.
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.
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.
The International Economic Association (IEA) is an NGO established in 1950, at the instigation of the Social Sciences Department of UNESCO. To date, the IEA still shares information and maintains consultative relations with UNESCO. In 1973 the IEA became a federated member of the International Social Science Council.
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:
