Denmark became a member of the European Economic Community (now the EU) in 1973, maintaining certain opt-outs; it retains its own currency, the krone.It is among the founding members of NATO, the Nordic Council, the OECD, OSCE, and the United Nations; it is also part of the Schengen Area.The remaining Jutish population in Jutland assimilated in with the settling Danes.A short note about the Dani in "Getica" by the historian Jordanes is believed to be an early mention of the Danes, one of the ethnic groups from whom modern Danes are descended.The Danish Vikings were most active in the eastern and southern British Isles and Western Europe.They conquered and settled parts of England (known as the Danelaw) under King Sweyn Forkbeard in 1013, and France where Danes and Norwegians founded Normandy with Rollo as head of state.The tribal Danes came from the east Danish islands (Zealand) and Scania and spoke an early form of North Germanic.
Denmark was largely consolidated by the late 8th century and its rulers are consistently referred to in Frankish sources as kings (reges).
Denmark and Norway remained under the same monarch until outside forces dissolved the union in 1814.
The union with Norway made it possible for Denmark to inherit the Faroe Islands, Greenland and Iceland.
Beginning in the 17th century, there were several cessions of territory to Sweden.
In the 19th century there was a surge of nationalist movements, which were defeated in the 1864 Second Schleswig War. In April 1940, a German invasion saw brief military skirmishes while the Danish resistance movement was active from 1943 until the German surrender in May 1945.
It is believed that Denmark became Christian for political reasons so as not to get invaded by the rising Christian power in Europe, the Holy Roman Empire, which was an important trading area for the Danes.