The Finnish-speaking part of the population are called Finns, possibly including a subculture of Swedish-speaking Finns. Finns are somewhat genetically distinct from other Europeans. The major Y-haplogroup in Finland is haplogroup N. Y-haplogroup I is another haplogroup prevalent in Finland, especially among the Swedish-speaking population. The Finnish language is not an Indo-European language, and belongs to Uralic family of languages. Finns are traditionally divided to subgroups (heimo) according to dialect, but these groupings have only a minor importance due to 20th century urbanization and internal migration.