Esperanto has never been an official language of any recognized country. However, there were plans at the beginning of the 20th century to establish Neutral Moresnet as the world's first Esperanto state. In China, there was talk in some circles after the 1911 Xinhai Revolution about officially replacing Chinese with Esperanto as a means to dramatically bring the country into the twentieth century, though this policy proved untenable. In the summer of 1924, the American Radio Relay League adopted Esperanto as its official international auxiliary language, and hoped that the language would be used by radio amateurs in international communications, but its actual use for radio communications was negligible. In addition, the self-proclaimed artificial island micronation of Rose Island used Esperanto as its official language in 1968. Esperanto is the working language of several non-profit international organizations such as the
Sennacieca Asocio Tutmonda , but most others are specifically Esperanto organizations. The largest of these, the World Esperanto Association, has an official consultative relationship with the United Nations and UNESCO. The U.S. Army has published military phrasebooks in Esperanto, to be used in wargames by mock enemy forces. Esperanto is also the first language of teaching and administration of the International Academy of Sciences San Marino, which is sometimes called an "Esperanto University".
