Faroe Islands in the context of Scotland

The salinity of water bodies varies widely, being lower near the surface and the mouths of large rivers and higher in the depths of the ocean; however, the relative proportions of dissolved salts vary little across the oceans. The most abundant solid dissolved in seawater is sodium chloride. The water also contains salts of magnesium, calcium, potassium, and mercury, among other elements, some in minute concentrations. A wide variety of organisms, including bacteria, protists, algae, plants, fungi, and animals live in various marine habitats and ecosystems throughout the seas. These range vertically from the sunlit surface and shoreline to the great depths and pressures of the cold, dark abyssal zone, and in latitude from the cold waters under polar ice caps to the warm waters of coral reefs in tropical regions. Many of the major groups of organisms evolved in the sea and life may have started there.

Vikings were a seafaring people originally from Scandinavia (present-day Denmark, Norway, and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded, and settled throughout parts of Europe. They voyaged as far as the Mediterranean, North Africa, the Middle East, Greenland, and Vinland (present-day Newfoundland in Canada, North America). In their countries of origin, and in some of the countries they raided and settled, this period of activity is popularly known as the Viking Age, and the term "Viking" also commonly includes the inhabitants of the Scandinavian homelands as a whole during the late 8th to the mid-11th centuries. The Vikings had a profound impact on the early medieval history of northern and Eastern Europe, including the political and social development of England (and the English language) and parts of France, and established the embryo of Russia in Kievan Rus'.

Expert sailors and navigators of their characteristic longships, Vikings established Norse settlements and governments in the British Isles, the Faroe Islands, Iceland, Greenland, Normandy, and the Baltic coast, as well as along the Dnieper and Volga trade routes across Eastern Europe where they were also known as Varangians. The Normans, Norse-Gaels, Rus, Faroese, and Icelanders emerged from these Norse colonies. At one point, a group of Rus Vikings went so far south that, after briefly being bodyguards for the Byzantine emperor, they attacked the Byzantine city of Constantinople. Vikings also voyaged to the Caspian Sea and Arabia. They were the first Europeans to reach North America, briefly settling in Newfoundland (Vinland). While spreading Norse culture to foreign lands, they simultaneously brought home slaves, concubines, and foreign cultural influences to Scandinavia, influencing the genetic and historical development of both. During the Viking Age, the Norse homelands were gradually consolidated from smaller kingdoms into three larger kingdoms: Denmark, Norway, and Sweden.

Greenland is an autonomous territory in the Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. It shares a small 1.2 km border with Canada on Hans Island. Citizens of Greenland are full citizens of Denmark and of the European Union. Greenland is one of the Overseas Countries and Territories of the European Union and is part of the Council of Europe. It is the world's largest island, and lies between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland's Kaffeklubben Island, off the northern coast, is the world's northernmost undisputed point of land—Cape Morris Jesup on the mainland was thought to be so until the 1960s. The capital and largest city is Nuuk. Economically, Greenland is heavily reliant on aid from Denmark, amounting to nearly half of the territory's total public revenue.

Though a part of the continent of North America, Greenland has been politically and culturally associated with the European kingdoms of Norway and Denmark for more than a millennium, beginning in 986. Greenland has been inhabited at intervals over at least the last 4,500 years by circumpolar peoples whose forebears migrated there from what is now Canada. Norsemen from Norway settled the uninhabited southern part of Greenland beginning in the 10th century (having previously settled Iceland), and their descendants lived in Greenland for 400 years until disappearing in the late 15th century. The 13th century saw the arrival of Inuit.

The Danish Realm, officially the Kingdom of Denmark, or simply Denmark, is a sovereign state consisting of a collection of constituent territories united by the Constitutional Act, which applies to the entire territory. It consists of metropolitan Denmark (sometimes called "Denmark proper")—the kingdom's territory in continental Europe and its proximate islands—and the realm's two autonomous (but not sovereign) regions: the Faroe Islands in the North Atlantic and Greenland in North America. The relationship between the three parts of the kingdom is known as rigsfællesskabet (the unity of the realm, which has also been translated into the Danish Commonwealth or the United Kingdom of Denmark).

The Kingdom of Denmark is not a federation, but a concept encompassing the three autonomous legal systems of Denmark, the Faroe Islands and Greenland, united under its monarch. The Kingdom of Denmark is a unitary sovereign state. It has Arctic territorial claims in the Arctic Ocean: various sites near the North Pole (Lomonosov Ridge, Gakkel Ridge, and the Alpha-Mendeleev Ridge complex). The Kingdom of Denmark constitutionally encompasses the realm or the country, but the Faroe Islands and Greenland have an extended degree of autonomy to govern their relations.

The Gaels (/ɡeɪlz/ GAYLZ; Irish: Na Gaeil [n̪ˠə ˈɡeːlʲ]; Scottish Gaelic: Na Gàidheil [nə ˈkɛː.al]; Manx: Ny Gaeil [nə ˈɡeːl]) are an Insular Celtic ethnic group native to Ireland, Scotland, and the Isle of Man, and historically, Iceland and the Faroe Islands. They are associated with the Gaelic languages: a branch of the Celtic languages comprising Irish, Manx, and Scottish Gaelic.

Gaelic language and culture originated in Ireland, extending to Dál Riata in western Scotland. In antiquity, the Gaels traded with the Roman Empire and also raided Roman Britain. In the Middle Ages, Gaelic culture became dominant throughout the rest of Scotland and the Isle of Man. There was also some Gaelic settlement in Wales, as well as cultural influence through Celtic Christianity. In the Viking Age, small numbers of Vikings raided and settled in Gaelic lands, becoming the Norse-Gaels. In the 9th century, Dál Riata and Pictland merged to form the Gaelic Kingdom of Alba (Scotland). Meanwhile, Gaelic Ireland was made up of several kingdoms, with a High King often claiming lordship over them.

Denmark is a Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark, also known as the Danish Realm, a constitutionally unitary state that includes the autonomous territories of the Faroe Islands and Greenland in the north Atlantic Ocean. Metropolitan Denmark, also called "continental Denmark" or "Denmark proper", consists of the northern Jutland peninsula and an archipelago of 406 islands. It is the southernmost of the Scandinavian countries, lying southwest of Sweden, south of Norway, and north of Germany, with which it shares a short border. Denmark proper is situated between the North Sea to the west and the Baltic Sea to the east.

The Kingdom of Denmark, including the Faroe Islands and Greenland, has roughly 1,400 islands greater than 100 square metres (1,100 sq ft) in area; 443 have been named and 78 are inhabited. Denmark's population is over 6 million (1 May 2025), of which roughly 40% live in Zealand, (Sjælland) the largest and most populated island in Denmark proper; Copenhagen, (København) the capital and largest city of the Danish Realm, is situated on Zealand and Amager and Slotsholmen. Composed mostly of flat, arable land, Denmark is characterised by sandy coasts, low elevation, and a temperate climate. Denmark exercises hegemonic influence in the Danish Realm, devolving powers to the other constituent entities to handle their internal affairs. Home rule was established in the Faroe Islands in 1948; Greenland achieved home rule in 1979 and further autonomy in 2009.

The Nordic countries (also known as the Nordics or Norden; lit. 'the North') are a geographical and cultural region in Northern Europe, as well as the Arctic and North Atlantic oceans. It includes the sovereign states of Denmark, Finland, Iceland, Norway and Sweden; the autonomous territories of the Faroe Islands and Greenland; and the autonomous region of Åland.

The Nordic countries have much in common in their way of life, history, religion and social and economic model. They have a long history of political unions and other close relations but do not form a singular state or federation today. The Scandinavist movement sought to unite Denmark, Norway and Sweden into one country in the 19th century. With the dissolution of the union between Norway and Sweden (Norwegian independence), the independence of Finland in the early 20th century and the 1944 Icelandic constitutional referendum, this movement expanded into the modern organised Nordic cooperation. Since 1962, this cooperation has been based on the Helsinki Treaty that sets the framework for the Nordic Council and the Nordic Council of Ministers.

Greenland, an autonomous territory within the Kingdom of Denmark (which also includes the territories of metropolitan Denmark and Faroe Islands) is one of the EU members’ overseas countries and territories (OCT) associated to the European Union. Greenland receives funding from the EU for sustainable development and has signed agreements increasing cooperation with the EU.

The associated relationship with the EU also means that all citizens of the Realm of Denmark residing in Greenland (Greenlandic nationals) are EU citizens. This allows Greenlanders to move and reside freely within the EU.

A sheriff is a government official, with varying duties, existing in some countries with historical ties to England where the office originated. There is an analogous, although independently developed, office in Iceland and the Faroe Islands, the sýslumaður, which is commonly translated to English as sheriff.

The European Economic Area (EEA) has 32 special territories of EU member states and EFTA member states which, for historical, geographical, or political reasons, enjoy special status within or outside the European Union and the European Free Trade Association.

The special territories of EU member states are categorised under three headings: nine Outermost Regions (OMR) that form part of the European Union, though they benefit from derogations from some EU laws due to their geographical remoteness from mainland Europe; thirteen Overseas Countries and Territories (OCT) that do not form part of the European Union, though they cooperate with the EU via the Overseas Countries and Territories Association; and ten special cases that form part of the European Union (with the exception of the Faroe Islands), though EU laws make ad hoc provisions. The Outermost Regions were recognised at the signing of the Maastricht Treaty in 1992, and confirmed by the Treaty of Lisbon in 2007.

Norwegians (Norwegian: Nordmenn) are an ethnic group and nation native to Norway, where they form the vast majority of the population. They share a common culture and speak the Norwegian language. Norwegians are descended from the Norse of the Early Middle Ages who formed a unified Kingdom of Norway in the 9th century. During the Viking Age, Norwegians and other Norse peoples conquered, settled and ruled parts of the British Isles, the Faroe Islands, Iceland and Greenland. Norwegians are closely related to other descendants of the Norsemen such as Danes, Swedes, Icelanders and the Faroe Islanders, as well as groups such as the Scots whose nation they significantly settled and left a lasting impact in, particularly the Northern Isles (Orkney and Shetland).

The Norwegian language, with its two official standard forms, more specifically Bokmål and Nynorsk, is part of the larger Scandinavian dialect continuum of generally mutually intelligible languages in Scandinavia. Norwegian people and their descendants are found in migrant communities worldwide, notably in the United States, Canada, Australia, New Zealand, South Africa and the United Kingdom. Norwegians are traditionally Lutheran since the Reformation in Denmark–Norway and Holstein which made Lutheranism the only legal religion in the country, however large portions of the population are now either non-practicing, atheist or agnostic.

Scandinavia is a subregion of northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. Scandinavia most commonly refers to Denmark, Norway, and Sweden. It can sometimes also refer to the Scandinavian Peninsula (which excludes Denmark but includes a part of northern Finland). In English usage, Scandinavia is sometimes used as a synonym for Nordic countries. Iceland and the Faroe Islands are sometimes included in Scandinavia for their ethnolinguistic relations with Sweden, Norway and Denmark. While Finland differs from other Nordic countries in this respect, some authors call it Scandinavian due to its economic and cultural similarities.

The geography of the region is varied, from the Norwegian fjords in the west and Scandinavian mountains covering parts of Norway and Sweden, to the low and flat areas of Denmark in the south, as well as archipelagos and lakes in the east. Most of the population in the region live in the more temperate southern regions, with the northern parts having long, cold winters.

The Kalmar Union was a personal union in Scandinavia, agreed at Kalmar in Sweden as designed by Queen Margaret of Denmark. From 1397 to 1523, it joined under a single monarch the three kingdoms of Denmark, Sweden (then including much of present-day Finland), and Norway, together with Norway's maritime colonies (then including Iceland, Greenland, the Faroe Islands, and the Northern Isles of Orkney and Shetland).

The union was not quite continuous; there were several short interruptions. Legally, the countries remained separate sovereign states, but their domestic and foreign policies were directed by a common monarch. Gustav Vasa's election as King of Sweden on 6 June 1523, and his triumphant entry into Stockholm 11 days later, marked Sweden's final secession from the Kalmar Union. The Danish king formally renounced his claim to Sweden in 1524 at the Treaty of Malmö.

The Treaty of Kiel (Danish: Kieltraktaten) or Peace of Kiel (Swedish and Norwegian: Kielfreden or freden i Kiel) was concluded between the United Kingdom of Great Britain and Ireland and the Kingdom of Sweden on one side and the Kingdoms of Denmark and Norway on the other side on 14 January 1814 in Kiel. It ended the hostilities between the parties in the ongoing Napoleonic Wars, where the United Kingdom and Sweden were part of the anti-French camp (the Sixth Coalition) while Denmark–Norway was allied to the French Empire.

Frederick VI of Denmark joined the anti-French alliance, ceded Heligoland to George III of the United Kingdom, and further ceded the Kingdom of Norway to Charles XIII of Sweden in return for Swedish Pomerania. Specifically excluded from the exchange were the Norwegian dependencies of Greenland, Iceland and the Faroe Islands, which remained in the union with Denmark. (Norway would unsuccessfully contest the Danish claim to all of Greenland in the Eastern Greenland Case of 1931–1933.)

Denmark–Norway was a 16th-to-19th-century multi-national and multi-lingual real union consisting of the Kingdom of Denmark, the Kingdom of Norway (including the then Norwegian overseas possessions: the Faroe Islands, Iceland, Greenland, and other possessions), the Duchy of Schleswig, and the Duchy of Holstein. The state also claimed sovereignty over three historical peoples: Frisians, Gutes and Wends. Denmark–Norway had several colonies, namely the Danish Gold Coast, Danish India (the Nicobar Islands, Serampore, Tharangambadi), and the Danish West Indies.

The state's inhabitants were mainly Danes, Norwegians and Germans, and also included Faroese, Icelanders and Inuit in the Norwegian overseas possessions, a Sami minority in northern Norway, as well as other indigenous peoples. The main cities of Denmark–Norway were Copenhagen, Christiania (Oslo), Altona, Bergen and Trondheim, and the primary official languages were Danish and German, but Norwegian, Icelandic, Faroese, Sami and Greenlandic were also spoken locally.