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 languages part of Uralic. Meanwhile, in the autonomous Grand Duchy of Finland, a chair for Finnish language and linguistics at the University of Helsinki was created in 1850, first held by Castrén. In 1883, the Finno-Ugrian Society was founded in Helsinki on the proposal of Otto Donner, which would lead to Helsinki overtaking St. Petersburg as the chief northern center of research of the Uralic languages. During the late 19th and early 20th century (until the separation of Finland from Russia following the Russian revolution), a large number of stipendiates were sent by the Society to survey the still less known