Lithuanian is an East Baltic language belonging to the Baltic branch of the Indo-European language family. It is the official language of Lithuania and one of the official languages of the European Union. There are approximately 2.8 million native Lithuanian speakers in Lithuania and about 1,000,000 speakers elsewhere. Lithuanian is closely related to Latvian, though the two languages are not mutually intelligible. It is written in a Latin script and is considered to be the most conservative of the existing Indo-European languages, retaining features of the Proto-Indo-European language that had disappeared through development from other descendant languages