The Bahá'í Esperanto-League (BEL) is the official organization of Bahá'ís who are Esperantists. It was founded on 19 March 1973 with the approval of the Universal House of Justice.
Read more about Bahá'í Esperanto-League: The Bahá'í Faith and Esperanto, The Bahá'í Esperanto-League, Founding The Bahá'í Esperanto-League, First Activities, Attempts, Obstacles and Achievements, New Developments Following The World Congresses in Beijing and Warsaw, BEL Today, Sources