Short answers, pulled from the story.
The Nordic countries include five sovereign states: Denmark, Finland, Iceland, Norway, and Sweden. The region also encompasses the autonomous territories of the Faroe Islands and Greenland, and the autonomous region of Åland.
The Helsinki Treaty, signed on the 23rd of March 1962 and in force from the 1st of July 1962, is the political agreement that sets the framework for Nordic cooperation through the Nordic Council and the Nordic Council of Ministers. The 23rd of March is observed as Nordic Day. The treaty established the basis for the Nordic Passport Union, a common labour market, and free movement across borders.
The Nordic model combines a market economy with a welfare state funded through high taxes. It emphasises universal provision of public services, including free education and low-cost healthcare, strong trade unions, high income redistribution, and maximised labour force participation. In 2015, Save the Children ranked the Nordic countries numbers 1 through 5 among 179 countries for the wellbeing of mothers and children.
Finland joined NATO on the 4th of April 2023 and Sweden joined on the 7th of March 2024, following the Russian invasion of Ukraine. By 2024, all five Nordic countries were NATO members.
The Icelandic Althing, founded in 930 AD, is considered the oldest working parliament in the world. It was dissolved for much of the first half of the 19th century but has continued to operate since then. Today it holds 63 seats.
Sweden is the third largest exporter of pop music overall, after the United States and the United Kingdom, and the largest per capita exporter of pop music in the world. Artists and groups originating from Sweden include ABBA, Ace of Base, The Cardigans, Europe, and Roxette.