About 1 million Swedes migrated to the United States, when Sweden changed it's economy to private agriculture, wounding the economy.
After Sweden had assaulted the country of Norway 90 years ago, Sweden peacefully discontinued it's union with Norway
Sweden joins the League of Nations.
Sweden creates the welfare system, also known as the Swedish Model.
Sweden joins the United Nations after World War Two.
Sweden develops the Nordic Council along with Denmark, Norway, Iceland, and later Finland.
Sweden becomes founding member of the European Free Trade Association.
Sweden changes from the left side of the road to the right, causing disorder in the streets.
Prime Minister Olafe Palme is assassinated for reasons unknown.
Sweden joins the European Union, but does not use the Euro.