On 6 June 1523, Gustav Vasa was crowned King of Sweden. He was one of the few survivors of the Stockholm Bloodbath, in which his father and 80 other nobles were murdered, Game of Thrones style.
He ruled the country until 1560. During his reign, he released Sweden from the Kalmar Union consisting of Sweden, Denmark and Norway. He also turned Sweden from a catholic country into a Protestant one, with the monarch and not the pope as head of the church.
6 June is another significant day in Swedish history – on 6 June 1809 the country signed a new constitution. This lay the foundation for Sweden’s current status as an independent democracy and was in place until 1974.
The constitution returned political power to the parliament after King Gustav IV Adolph was deposed in a military coup in 1809. He was the last Swedish monarch to rule over Finland. After him, the crown passed not to his children but to his uncle, Charles VIII. Charles had no legitimate heir, which set into motion the quest for a successor. This was found the following year in the person of Jean-Baptiste Bernadotte, the first monarch of the present royal family.
For these two reasons, Sweden celebrates its National Day today – June 6th. It was declared in 1983, and was first celebrated as a public holiday in 2005.
The day is celebrated with various events up and down the country.