Around the year AD 200, speakers of the North Germanic branch became distinguishable from other Germanic language speakers. This separation occurred during the Migration Period which lasted from AD 300 to 600. Runic inscriptions provide the earliest evidence for this distinct development. Dialects with northern features formed from Proto-Germanic in Northern Europe during the late Pre-Roman Iron Age. The exact relationship between these groups remains difficult to determine due to sparse historical records. Some individual varieties are hard to classify because they remained mutually intelligible to some degree. Eventually, the North Germanic languages split into East Scandinavian and West Scandinavian branches after the Old Norse period.
Modern Language Branches
East Scandinavian includes Danish, Swedish, and Old Gutnish while West Scandinavian covers Norwegian, Faroese, and Icelandic. Approximately 20 million people speak a Scandinavian language as their native language across Nordic countries. Swedish is the most spoken language overall with about 13.2 million speakers. Danish has roughly 5.6 million speakers and serves as an official language in Denmark and the Faroe Islands. Norwegian reaches around 5 million speakers within Norway itself. Icelandic numbers approximately 358,000 speakers while Faroese counts about 90,000. Elfdalian represents just 3,500 speakers and exists as a separate language by many linguistic standards. Gutnish survives with only 5,000 speakers on Gotland island.