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| | | The Vikings were prolific seafaring warriors from Denmark, Norway and Sweden. The early Danish timeline reflects the history of the Vikings | |
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| | 793 | Swedish Vikings first raid in England. The monastery of St. Cuthbert at Lindisfarne is sacked | |
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| | 844 | Vikings raid Seville in Spain | |
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| | 845 | Vikings, led by Ragnor, travel up the River Seine in France | |
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| | 845 | The French King pays a ransom to prevent the sacking of Paris | |
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| | 860 | Vikings attack Constantinople | |
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| | 862 | Vikings found Novgorod in Russia | |
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| | 874 | Vikings settle Iceland | |
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| | 900 | Vikings raid the Mediterranean coasts | |
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| | 911 | Vikings under Rollo are settled in Normandy | |
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| | 981 | Erik the Red discovers Greenland | |
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| | 986 | Vikings land in Canada | |
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| | 965 | Harald Bluetooth (King Harold I) converts the Danes to Christianity | |
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| | 1000 | Greenland and Iceland are converted to Christianity by the Vikings | |
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| | 1001 | Leif Eriksson reaches the American coast | |
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| | 1050 | Vikings found the city of Oslo in Norway which is established as a major trade center. | |
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| | 1350 | The Bubonic Plague (the Black Death) "Svartedauen" sweeps Sweden and Scandinavia killing one third of the inhabitants | |
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| | 1397 | Union of Kalmar unites Denmark, Sweden and Norway under a single monarch. Denmark is the dominant power | |
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| | 1523 | King Gustav I of Sweden re-establishes separation of the Swedish Crown from the union. The Vasa Dynasty lasts from 1523 - 1654 | |
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| | 1611 | 1611-1718 Sweden becomes a great power | |
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| | 1654 | 1654 - 1720 Wittelsbach Dynasty (Pfalzisks) | |
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| | 1632 | Queen Christina rules Sweden from 1632 - 1654 | |
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| | 1720 | 1720 - 1751 Brabant Dynasty (Hessen) | |
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| | 1751 | 1751 - 1818 Holsten-Gottorp Dynasty | |
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| | 1814 | Denmark cedes Norway to Sweden | |
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| | 1818 | 1818 - Present Day: The Bernadotte Swedish Dynasty | |
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| | 1901 | Alfred Nobel, the Swedish chemist and industrialist, initiates the Nobel prize awards | |
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| | 1905 | The union with Sweden disintegrates and Norway becomes an independent kingdom | |
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| | 1914 | 1914-1918: World War I | |
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| | 1939 | 1939 - 1945 World War 2 | |
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| | 1939 | Sweden declares its neutrality - Sweden remains neutral but rejects a request from Germany to use its territory as a transit route for German troops | |
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| | 1940 | Sweden is forced to allow German troops to march through Sweden to Norway | |
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| | 1945 | August 1945: The United States dropped atomic bombs on Hiroshima and Nagasaki | |
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| | 1945 | Germany surrenders to the Allies. | |
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