The Centre For Research and Documentation on World Language Problems (CED)

A Few Words About


Mark Fettes
Director of CED

The Centre For Research and Documentation on World Language Problems (CED) was founded in 1952, as a specialized branch of the Universal Esperanto Association (UEA) under the direction of Ivo Lapenna, to promote the scholarly study of Esperanto and its diverse applications in all spheres of life; to ensure the compilation and editing of reliable documentation on Esperanto; and to support efforts to present the facts about Esperanto to international organisations, scholarly and specialist associations, and the public. 

In 1999, Christer Kiselman launched the journal Esperantologio/Esperanto Studies, with a run of eight issues stretching to 2018. The journal brought together original studies on the linguistic, historical, literary, psychological, sociological and political aspects of Esperanto, and also book reviews. In 2020, CED was reorganized, with the establishment of a large Advisory Board appointed by the Executive Board of UEA, among whose members the new director, Mark Fettes, recruited a small steering committee with responsibility for five action areas

History of CED

  • CED was founded by Ivo Lapenna in 1952
  • In 1969, the journal La Monda Lingvo-Problemo was founded, being later renamed Language Problems and Language Planning
  • In 1974, Ulrich Lins started publishing the Newsletters for Interlinguists, currently titled Information for Interlinguists / Informilo por Interlingvistoj
  • In 1978, Detlev Blanke began organising the Conferences on Esperanto Studies, taking place as part of the annual World Congresses of Esperanto
  • The Terminological Esperanto Centre was founded in 1987
  • In 1996, Mark Fettes organised the first Nitobe Symposium
  • In 1999, Christer Kiselman relaunched the journal Esperantologio as Esperantologio / Esperanto Studies, edited by Paul Neergard since 1949
  • In 2020 there was an organisational reform of CED

CED Board of Directors

Guilherme Fians
Guilherme Fians
Snehaja Venkatesh
Mark Fettes
Klaus Schubert
Michele Gazzola
Michele Gazzola

Advisory Board

Xavi Alcalde
Irene Caligaris
Renato Corsetti
Federico Gobbo
Kimura Goro
Mélanie Maradan
Alessandra  Madella

A Giridhar Rao
Orlando E Raola
Ida Stria
Angela Tellier
Humphrey Tonkin
Bernhard Tuider
Bengt-Arne Wickström

CED financially supports

Research Projects


La Bona Renkontiggio (a freely downloadable podcast project by Stela Besenyei-Merger) explores the issue of nativeness through interviews with various people: activists, natives, and parents in relation to the issue of education with Esperanto.

St Andrews

“Esperanto kaj Internaciismo, 1880-1920”, a collaborative project in the School of History at the University of St Andrews. Prof. Struck. and his students research about experts in the Esperanto movement as 'epistemic communities', e.g. doctors, architects, and urban planners.

Linguistic Justice

Language policy affects the level of inequality between languages. Large inequalities are often seen as a source of conflict. Evidence of linguistic justice would make it possible to define such distributional effects across time and space, and to control their development, thus leading to activities to control them.

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