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The history of Denmark 

Since the last ice age ended around 10,000 BC, humans have lived on the land we now call Denmark. The flat terrain, rich soil, proximity to the water, and sometimes rough climate have shaped Danish history and culture ever since. 

The first humans in Denmark

The first Danes were hunters and fisherman who probably entered the country at the end of the last ice age around 10,000 BC.

By 3000 BC, farms had begun to appear on the flat, fertile land we now call Denmark. At first, the farmers used stone tools and weapons, but they later adopted bronze and then iron. 

Danes from the Iron Age did business with the Roman Empire, selling the Romans furs and amber. By 200 AD, people living in Denmark had begun using the written Rune language to write on stones. 

The glamorous, violent Vikings

One of the most famous periods in Danish history is the Viking Age. It began in 793 AD with the Vikings' violent raid on the English tidal island of Lindisfarne. Shortly after, the Vikings built settlements in Yorkshire in Northern England and in Normandy in northwestern France.

The Viking Age lasted about 250 years. At one point, the Danish Viking Sweyn Forkbeard (Svend Tveskæg), and his son Canute the Great (Knud den Store), were the kings not only of Denmark but of Norway, Iceland, Greenland, the Faroe Islands, Shetland, Orkney, parts of England and parts of Sweden.

The Vikings travelled widely outside their realm, sailing to what today is Russia and Turkey. Their admirable navigation skills at sea also brought them as far as Greenland and North America. They continued to plunder and steal, along with more peaceful activities such as trading precious metals, textiles, glassware, jewellery, and fur. On occasion, they also bought and sold European slaves.

Did you know

The Vikings were superb shipbuilders and sailors. Their finely crafted longships gave them the advantage needed to conquer by sea.

The introduction of Christianity

When King Harald Bluetooth was baptised around 965 AD, the Christian clergy became influential in Danish society. But the newly-adopted religion did not immediately make the Danes into peaceful people. They continued to fight to maintain and expand their territory, conquering parts of  Germany and Estonia. 

Nordic unity and rivalry

In 1397, the Kalmar Union joined Denmark, Norway and Sweden -including Greenland and Iceland - into a unit ruled under a single monarch, Queen Margrethe I.


The Kalmar Union lasted until Sweden broke away in 1523, the first shot in a long rivalry between Denmark and Sweden for dominance in the region. The two countries fought on a regular basis, and in 1658 Denmark had to cede Skåne, Halland and Blekinge, which today make up the southernmost provinces of Sweden. In 1814, the sovereignty of Norway was transferred to Sweden too. Iceland gained independence in 1918.

Absolutism and democracy

The humiliating defeat and loss of Skåne, Halland and Blekinge to Sweden set the stage for a power grab that introduced a hereditary and absolute monarchy in Denmark. The strong central government helped to create a well-organised bureaucratic state and introduce agricultural reforms that made farming more efficient, although many peasants were still tied to the land and forced to work at least part of their time for the landowner.

Reforms in 1784 changed this scenario and paved the way for additional rights for the peasants, and in 1814 universal primary education was introduced. 
In a power struggle with the German Confederation about the affiliation of the duchies of Schleswig, Holstein and Lauenburg on the southern border with Germany. the Danish king declared himself a constitutional monarch, paving the way for the present democratic constitution.


This move led to the war with the Germans (1848-1851) which Denmark won. But tensions continued and Denmark was defeated by Germany in a renewed conflict in 1864. As a result, Denmark had to cede all three duchies.

The northern, predominantly Danish part of Schleswig, returned under Danish rule in 1920 as a result of a plebiscite following Germany’s defeat in World War I. Denmark remained neutral in World War I. A small German minority still lives in the region. 

During World War ll, the  Germans built around 2,000 bunkers as part of their Atlantic Wall. One of them is this bunker, Vigsø. 

Partnerships and prosperity

After World War I, the Danish economy began evolving. With the help of the cooperative farmers’ movement, there was a large-scale shift from the cultivation of grain to livestock farming. Industrialisation and dairy production also accelerated, and a social welfare state was put in place.
On April 9, 1940, neutral Denmark was invaded by German troops. Overwhelmed by the German war machine, the country put up minimal resistance at first. During the five-year occupation, an underground resistance developed to fight the Nazi rule. On May 5th, 1945, Denmark was liberated from the German occupation thanks to the efforts of the Grand Alliance (UK, US and the Soviet Union) and the Danish resistance. Light returned to Danish cities after five years of darkness.
The post-war Danish economy became more and more internationalised and exports rose, contributing to prosperity. Danish design goods and furniture were popular around the world, along with Danish bacon, butter, and other agricultural products.

In 1972, Denmark joined the European Economic Community (EEC) - the leading economic partnership in Europe - which later became the European Union. Denmark was also one of the founding members of the United Nations (UN) and continues to be a member of the military alliance - the North Atlantic Treaty Organisation (NATO).

Today Denmark is a constitutional monarchy and defender of free trade and human rights. Denmark also helps fight poverty around the world through its development cooperation.


Read more about Denmark in the world.

Important events in Danish history

C. 10000 BCE First hunters inhabit Danish lands
3900 BCE Basic society built on agriculture and animal husbandry
400 - 700 Urbanisation begins
866 - 867 Danish Vikings conquest York, which becomes the Viking capital of England
C. 965 Introduction of Christianity to Denmark
1015 - 1034      England under Danish rule
1397 - 1523      The Kalmar Union: Denmark, Norway,
Sweden, Finland, Iceland, Greenland, the Faroe Islands, Shetland and Orkney

1479 Founding of the University of Copenhagen

1523 Loss of Sweden

1536 The Reformation, Norway incorporated into Denmark
1660 - 1661      Introduction of absolutism – absolute power of the monarchy
1666 - 1917      Danish colonies created in the Caribbean
1807 Copenhagen bombed by the English navy 
1814 Loss of Norway

1848 Abolition of absolutism
1849 First democratic constitution - "the June Constitution"
1864 Loss of the duchies Schleswig, Holstein and Lauenburg
1914 - 1918      Danish neutrality during World War I
1915 Constitutional reform, enfranchisement of women
1918 Iceland
gains independence from the Kingdom of Denmark
1920 North-Schleswig votes in favour of reunion with Denmark
1940 - 1945      German occupation during World War II
1945                   Founding membership of the UN
1949                   Membership of NATO
1973                   Membership of the EEC
1993                  Membership of the EU

2011 First female Prime Minister in office, Helle Thorning-Schmidt