The remote Norwegian islands of Svalbard and Jan Mayen are usually not seen as a part of Scandinavia, nor is Greenland, a constituent country within the Kingdom of Denmark. The Faroe Islands may be included.
The name Scandinavia originally referred to the former Danish, now Swedish, region of Scania. Scandinavia and Scandinavian entered usage in the late 18th century, being introduced by the early linguistic and cultural Scandinavist movement. The majority of the population of Scandinavia are descended from several North Germanic tribes who originally inhabited the southern part of Scandinavia and spoke a Germanic language that evolved into Old Norse. Icelanders and the Faroese are to a significant extent descended from the Norse and are therefore often seen as Scandinavian. Finland is mainly populated by Finns, with a minority of approximately 5% of Swedish speakers. A small minority of Sami people live in the extreme north of Scandinavia. The Danish, Norwegian and Swedish languages form a dialect continuum and are known as the Scandinavian languages—all of which are considered mutually intelligible with one another. Faroese and Icelandic, sometimes referred to as insular Scandinavian languages, are intelligible in continental Scandinavian languages only to a limited extent. Finnish and Meänkieli are closely related to each other and more distantly to the Sami languages, but are entirely unrelated to the Scandinavian languages. Apart from these, German, Yiddish and Romani are recognized minority languages in parts of Scandinavia.
"Scandinavia" refers to Denmark, Norway and Sweden. Some sources argue for the inclusion of the Faroe Islands, Finland and Iceland, though that broader region is usually known by the countries concerned as Norden (Finnish: Pohjoismaat, Icelandic: Norðurlöndin, Faroese: Norðurlond), or the Nordic countries.
The use of Scandinavia as a convenient general term for Denmark, Norway and Sweden is fairly recent. According to some historians, it was adopted and introduced in the eighteenth century, at a time when the ideas about a common heritage started to appear and develop into early literary and linguistic Scandinavism. Before this time, the term "Scandinavia" was familiar mainly to classical scholars through Pliny the Elder's writings and was used vaguely for Scania and the southern region of the peninsula.
As a political term, Scandinavia was first used by students agitating for pan-Scandinavianism in the 1830s. The popular usage of the term in Sweden, Denmark and Norway as a unifying concept became established in the nineteenth century through poems such as Hans Christian Andersen's "I am a Scandinavian" of 1839. After a visit to Sweden, Andersen became a supporter of early political Scandinavism. In a letter describing the poem to a friend, he wrote: "All at once I understood how related the Swedes, the Danes and the Norwegians are, and with this feeling I wrote the poem immediately after my return: 'We are one people, we are called Scandinavians!'".