Actually, most of the days of the week come from Nordic mythology. 900 Sweden becomes unified. Olof Sk tkonung is the first king. 1050 Sweden becomes christianized. The Great Power period.
Many wars lead to the expansion of Swedish territory.
Sweden acquires its present borders. The breakthrough of industrialism in Sweden. With industry intact after WW2, and with high quality engineering, Sweden becomes one of the wealthiest countries in the world. Sweden becomes a member of the European Union. Size Sweden has an area of about 450,000 sq.km.