Esperanto Museum and Collection of Planned Languages

This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (October 2015) (Learn how and when to remove this message)

Esperanto Museum and Collection of Planned Languages

Palais Mollard-Clary
Established	1927
Location	Vienna, Austria
Type	Language museum
Website	http://www.onb.ac.at

You can help expand this article with text translated from the corresponding article in Esperanto. (March 2021) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Esperanto Wikipedia article at [[:eo:Esperantomuzeo kaj Kolekto por Planlingvoj]]; see its history for attribution. You may also add the template {{Translated|eo|Esperantomuzeo kaj Kolekto por Planlingvoj}} to the talk page. For more guidance, see Wikipedia:Translation.

The Esperanto Museum and Collection of Planned Languages (German: Esperantomuseum und Sammlung für Plansprachen, Esperanto: Esperantomuzeo kaj kolekto por planlingvoj), commonly known as the Esperanto Museum, is a museum for Esperanto and other constructed languages in Vienna, Austria. It was founded in 1927 by Hofrat Hugo Steiner and was incorporated into the Austrian National Library as an independent collection in 1928.^[1] Today, it is a museum, library, documentation center, and archive. It accommodates the largest collection of constructed languages in the world and a linguistic research library for language planning.^[2] Its catalogue is available online.

Since 2005, the museum has been located in the Baroque Palais Mollard-Clary. The museum holds around 35,000 library volumes, 3700 periodical titles, 3500 cultural artifacts, 10,000 autographs and manuscripts, 22,000 photographs and photographic negatives, 1500 posters, and 40,000 pamphlets. Overall, approximately 500 various planned languages are documented, of which the most important is Esperanto.