Sweden history dates back to 9000 B.C. when a high concentration of petroglyphs can be discovered in different regions of Sweden. The early Sweden had been born out of a display of warfare. The first king of Sweden about whom the historians have reached a conclusion is Olof Skötkonung who ruled over Svea and Göta Riken. The dynastic struggles in Sweden continued in the 12th century. The Erik and Sverker clans often got engaged in the struggles. During that period, a new clan came to the throne. This new one was the Folkunga dynasty which was formed after a third clan married into the Erik clan. The Folkunga dynasty brought a stability in the Sweden history of empires. This dynasty gradually brought together the pre-Kalmar-Union Sweden to an actual nation. This amalgamated state of Sweden included the modern Finland.
But the stability of the Sweden history of empires did not last long. There were frequent civil wars in Sweden. Finally after the Black Death, Queen Margaret I of Denmark took a bold decision to bring peace in the land of Sweden. She had talks with the Swedish nobility and with their approval forwarded to unite the Nordic countries in the Kalmar Union in 1397. But unfortunately, this decision could not bring peace in the nation. The Swedes and the Danes often led themselves into serious conflict.
The modern Sweden history starts in the 16th century when Gustav Vasa fought to bring independence in Sweden. This attempt ultimately led to the foundation of modern Sweden. The Reformation was established in Sweden followed by the break with the Roman Catholic Church. Sweden engaged in a war last in 1814. Since then, the Sweden history has not witnessed any major bloodshed.