Denmark

Explore the comprehensive timeline of Denmark, highlighting significant historical milestones that have shaped the nation. From the Viking Age and the establishment of the Danish monarchy, to modern developments in politics, culture, and society, discover the events that have influenced Denmark's journey through history.

19 juni 0911

17 juni 1397

26 februari 1658

2 april 1801

5 juni 1849

18 april 1864

28 juni 1914

9 april 1940

23 oktober 1944

14 januari 1972

28 juni 2000

6 juli 2015

19juni
0911
19 June 0911

The Viking Siege of Paris

In 911, a large Viking fleet under the leadership of Rollo laid siege to the city of Paris. This event marked a significant moment in the history of Frankish-Viking relations. Despite being repelled, the siege led to the Treaty of Saint-Clair-sur-Epte, granting Rollo land that would later become Normandy.

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17juni
1397
17 June 1397

The Formation of the Kalmar Union

On June 17, 1397, the Kalmar Union was established, uniting the three Scandinavian kingdoms of Denmark, Norway, and Sweden under a single monarch. This union was intended to defend the countries against German expansion and lasted until 1523 when Sweden broke away.

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26februari
1658
26 February 1658

Treaty of Roskilde

The Treaty of Roskilde was signed on February 26, 1658, ending the Northern Wars between Denmark-Norway and Sweden. This treaty resulted in Denmark ceding significant territories to Sweden, including Scania, Halland, and Blekinge, drastically reducing Danish influence in the region.

02april
1801
02 April 1801

The Battle of Copenhagen

The Battle of Copenhagen was a naval battle on April 2, 1801, between the British and the Danish-Norwegian fleet. It was part of the Napoleonic Wars, where Vice-Admiral Horatio Nelson led the British to a tactical victory, though Denmark managed to retain most of its ships.

05juni
1849
05 June 1849

Denmark Becomes a Constitutional Monarchy

On June 5, 1849, Denmark adopted a new constitution, transforming the nation from an absolute monarchy to a constitutional monarchy. This event marked a significant shift in power from the monarchy to the parliament, laying the foundation for modern Danish democracy.

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18april
1864
18 April 1864

Battle of Dybbøl

The Battle of Dybbøl on April 18, 1864, was a significant event in the Second Schleswig War between Denmark and the German Confederation led by Prussia and Austria. The Danish defeat led to the loss of the duchies of Schleswig, Holstein, and Lauenburg, altering Danish territorial boundaries.

28juni
1914
28 June 1914

Denmark's Neutrality in World War I

On June 28, 1914, the assassination of Archduke Franz Ferdinand sparked World War I. Denmark declared neutrality, maintaining its neutral stance throughout the war. Danish neutrality helped keep the country out of the hostilities, though it faced economic challenges and pressures from both warring sides.

09april
1940
09 April 1940

German Invasion of Denmark

On April 9, 1940, Nazi Germany invaded Denmark as part of Operation Weserübung, which also included the invasion of Norway. Denmark was occupied by German forces until May 1945, though it maintained a level of political control through cooperation with the occupiers to avoid harsh military rule.

23oktober
1944
23 October 1944

Iceland Declares Independence from Denmark

During World War II, while Denmark was occupied by Nazi Germany, Iceland took the opportunity to sever its ties, declaring independence on October 23, 1944. This event ended the union with Denmark and Iceland became a republic marking a crucial development in both nations’ histories.

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14januari
1972
14 January 1972

Danes Vote to Join the European Community

In a referendum on September 24, 1972, Danish citizens voted to join the European Communities, the precursor to the European Union. The treaty of accession was ratified, and on January 1, 1973, Denmark became a member, marking a significant step in its integration into European economic and political frameworks.

28juni
2000
28 June 2000

The Øresund Bridge Opening

The Øresund Bridge was officially opened on June 28, 2000, connecting Denmark with Sweden. This bridge and tunnel link across the Øresund Strait has facilitated significant economic and cultural exchanges between the two nations, becoming a crucial transport link in Scandinavia.

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06juli
2015
06 July 2015

Danish Crown Prince Attends WWI Anniversary

On July 6, 2015, Crown Prince Frederik of Denmark attended ceremonies marking the 100th anniversary of the Battle of Gallipoli in Turkey. Denmark, having remained neutral during WWI, took part in the commemorations as a gesture of peace and reconciliation alongside representatives from other nations.

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Frequently asked questions about Denmark

Discover commonly asked questions regarding Denmark. If there are any questions we may have overlooked, please let us know.

When did Denmark become a constitutional monarchy?

What was the impact of the Second World War on Denmark?

What are the origins of Denmark as a nation?

When did Denmark join the European Union?