1720 - 1751 Brabant Dynasty (Hessen)
1751 - 1818 Holsten-Gottorp Dynasty
1814 The peace treaty of Kiel and Denmark cedes Norway to Sweden
1818 - Present Day the Bernadotte Swedish Dynasty
1901 Alfred Nobel, the Swedish millionaire chemist and industrialist, initiates the Nobel prizes
1905 The union with Sweden disintegrates and Norway becomes an independent kingdom
1914-18 World War I Sweden remains neutral
1939 - World War II Sweden declares its neutrality
Sweden rejects a request from Germany to use its territory as a transit route for troops
1940 - Sweden is forced to allow German troops to march through Sweden to Norway
1939 - 1945 WW11
August 1945 The United States dropped atomic bombs on Hiroshima and Nagasaki
1945 Germany surrenders to the Allies.

The Viking Timeline - 793 to 1050 covers early Swedish History