Languages of the European Union languages, Latvian and Lithuanian; the Celtic languages, including Irish; and Greek are also Indo-European. Outside the Indo-European family, Estonian, Finnish, and Hungarian are Uralic languages while Maltese is the only Afroasiatic language with official status in the EU. The Basque language, a language isolate whose roots are unknown, is an official language in some parts of northern Spain, but not an official language of the EU. Most official EU languages are written in the Latin script. The two exceptions are Greek, which is written in the Greek script, and Bulgarian, which is written in Cyrillic script. With the accession of
Uralic–Yukaghir languages linguistic science may yet be able to resolve some of these seemingly intractable issues (cf. Vajda 2008). Häkkinen (2012) rejects a genetic link between Uralic and Yukaghir, arguing that the grammatical systems show too few convincing resemblances, especially the morphology, and proposes instead that many apparent Uralic–Yukaghir cognates are really borrowed from an early stage of Uralic (ca. 3000 BC; he dates Proto-Uralic at ca. 2000 BC) into an early stage of Yukaghir, while Uralic was (according to him) spoken near the Sayan region and Yukaghir near the Upper Lena River and near Lake Baikal. Aikio (2014) agrees that Uralic–Yukaghir