Estonian language Estonian language The Estonian language ( ) is the official language of Estonia, spoken natively by about 1.1 million people: 922,000 people in Estonia and 160,000 outside Estonia. It is a Southern Finnic language and is the second most spoken language among all the Finnic languages. Estonian is closely related to Finnish and belongs to the Finnic branch of the Uralic language family. Alongside Finnish, Hungarian and Maltese, Estonian is one of the four official languages of European Union that is not of an Indo-European origin. Despite some overlaps in the vocabulary due to borrowings, in terms of its origin,
Uralic languages published the most complete work on Finno-Ugric to that date. Up to the beginning of the 19th century, knowledge on the Uralic languages spoken in Russia had remained restricted to scanty observations by travelers. Already Finnish historian Henrik Gabriel Porthan had stressed that further progress would require dedicated field missions. One of the first of these was undertaken by Anders Johan Sjögren, who brought the Vepsians to general knowledge and elucidated in detail the relatedness of Finnish and Komi. Still more extensive were the field research expeditions made in the 1840s by Matthias Castrén (1813–1852) and Antal Reguly (1819–1858), who