Wikimedia Incubator is the place where potential new linguistic editions for existingopen-content projects supported by theWikimedia Foundation have their own wikis. There, they are arranged, written, tested, and proven worthy of Wikimedia hosting. Note thatBeta Wikiversity is the Incubator for Wikiversities andMultilingual Wikisource hosts content in languages which have very little content as well as multi-lingual sources. In the future, it is expected that very small projects will remain hosted at Incubator indefinitely.
Before its creation on 2 June 2006, the test projects were here at Meta-Wiki.