| 300 | Uppsala established |
| 536 | Two major volcanic eruptions created a global period of cooling, often referred to as “three years without summer”. The global death toll was enormous, and the event is now thought to be the origin of the myth of Fimbulvintr. |
| 750 | Birka established |
| 780 | Hedeby established |
| 789 | First recorded Viking raid in England (Dorset) |
| 793 | Lindisfarne raided |
| 795 | First recorded Viking raid in Ireland |
| 795 | First recorded Viking raid in Scotland |
| 800 | First Dane Viking settelement in Ireland, in Wexford |
| 820 | First recorded Viking raid in France |
| 841 | Dane Vikings founding Dublin |
| 844 | Dane Vikings raid Seville in Al-Andalus (not succesfully) |
| 845 | Dane Vikings siege Paris |
| 850 | Dane Vikings winter in England |
| 860 | Dane Vikings settle on Iceland |
| 860 | Rus Vikings attack Miklagård (Constantinople) |
| 862 | Rus Vikings establish kingdom in Holmgård (Novgorod) |
| 865 | The Great Heathen Army invade England |
| 866 | Dane Vikings establish kingdom in Jorvik (York) |
| 879 | Rus Vikings move capital from Holmgård to Kiyv, Kievan Rus is formaly established |
| 886 | Treaty establishes Danelaw |
| 911 | Hrolfr is given a part of the Frankish kingdom and establish Normandy |
| 941 | Rus Vikings raids Miklagård (Constantinople) |
| 944 | Rus Vikings raids Miklagård again, establish trade agreements |
| 981 | Eiríkur “Rauði” Þorvaldsson discovers Greenland |
| 986 | Eiríkur “Rauði” Þorvaldsson establish settlement and trading station in Greenland |
| 986 | Bjarni Herjólfsson discovers Vinland (Canada) |
| 1000 | Leifur “Heppni” Eiríksson and his sister Freydís Eiríksdóttir establishes settlement in Vinland (Canada) |
| 1000 | (c.) Scandinavian countries officially declared Christian (Roman Catholic) |
| 1000 | Oslo (Viken) established |
| 1009 | Dane Vikings attack London |
| 1015 | Dane Vikings abbandon settelement in Vinland |
| 1016 | Knútr “Ínn ríki” Sveinsson becomes king of England (1016), Denmark (1018) and Norway (1028) |
| 1066 | King Harold Godwinsson defeats Haraldr Harðraði at the battle of Stamford Bridge |
| 1066 | King Harold Godwinsson is defeated by Normandy Viking ruler William at the battle of Hastings |
| 1103 | Scandinavias first archbishop, in Lund |
| 1219 | June 15th at the battle of Lindanäs in Estonia the Danish flag is introduced. According to legend it fell from the sky into the hands of the King. It’s the first and oldest national flag in the world. |
| 1242 | Kievan Rus destroyed by Mongol invasion |
| 1397 | The Kalmar Union is established between Denmark, Norway and Sweden |
| 1453 | Varangian Guard dismantled by the Ottoman invasion |
| 1523 | The Kalmar Union collapses |
| 1530 | (c.) Scandinavian countries reformed to Lutheran Christianity |
| 1658 | Roskildefreden; Denmark forced to give Skåne, Halland, Blekinge, Öland and Gotland to Sweden |
| 1728 | Denmark claims Greenland and establish colony |
| 1808 | The Finnish War was fought between Sweden and Russia from February 1808 to September 1809. As a result of the war, Finland which formed the eastern third of Sweden proper became the autonomous Grand Duchy of Finland within Imperial Russia. |
| 1814 | January 14th at the Treaty of Kiel, the king of Denmark-Norway ceded Norway to the king of Sweden. Denmark keeps Greenland, Faroe Islands and Iceland |
| 1864 | Denmark looses Slesvig-Holsten to Germany in a war |
| 1873 | The term “Viking Age” is invented |
| 1876 | Scenographer Carl Emil Doepler creates horned helmets for the first Bayreuther Festspiele production of Wagner’s “Der Ring des Nibelungen” |
| 1905 | Norway independent |
| 1917 | Finland independent (from both Russia and Sweden) |
| 1918 | Even though Denmark was not parttaking in World War one, Germany is forced to give North Slesvig to Denmark, after loosing the war. The area is renamed to Sønderjylland |
| 1940 | Denmark and Norway occupied by Nazi Germany |
| 1941 | US occupy Greenland with permission from the Danish ambassador in USA. He has gone rogue, since the Danish government is under Nazi German control. Occupation ends in 1945, but one military base remain in Thule. |
| 1944 | Iceland independent |
| 1945 | End of World War 2, occupation of Denmark and Norway ends |
| 1945 | Denmark (incl. Greenland and Faroe Islands) and Norway joins United Nations |
| 1946 | Iceland and Sweden joins United Nations |
| 1949 | Denmark, Norway and Iceland becomes members of NATO |
| 1955 | Finland joins United Nations |
| 1973 | Denmark become EU member |
| 1979 | Greenland gained autonomy from Denmark, with some limitations. Leaves EU. |
| 1995 | Sweden and Finland become EU members |
| 2023 | Sweden and Finland applies for NATO membership |
| 2025 | Rus Vikings invade and reestablish Kievan Rus to end hostilities between Russia and Ukraine, and restore order.
Vladimir Putin is beheaded in Kyiv.* |
| 2026 | From Kievan Rus the Varangians siege Miklagård and blood-eagle Recep Tayyip Erdoğan.* |
