Stones of Mora was the place where the Swedish kings were elected. The origin of the tradition is unknown, but it has been known since the 13th century and mentioned by Snorri Sturlason (died 1241). The first known document tells that Magnus Ladulås was elected at the Stones of Mora in 1275. Magnus IV was elected at the stones on July 8, 1319 and Kristian I in 1457. He was the last to be elected at the stones.
The Stone of Mora and many stones which flanked it with inscriptions commemorating the elections of earlier kings, were probably destroyed in 1515 during the civil war against the Danes. Gustav Vasa and John III are said to have tried to reconstruct the Stones of Mora without success.
One of the fragments is known as the stone Three Crowns since it is the earliest known example of the use of Sweden's national symbol. The fragment is what remains of the election of Albert of Mecklenburg.
The building where the fragments are contained today was constructed by Carl Wijnbladh in 1770.
References:Towering 52 meters above the sea, Bengtskär lighthouse is the tallest one in Scandinavia. The building started in in 1905 after the shipwreck of S/S Helsingfors and was completed in 1906. The lighthouse was designed by architect Florentin Granholm. On December a special petrol lantern, designed and built in Paris, was brought to Bengtskär and installed atop the tower.
German fleet bombarded Bengstkär in the First World War in 1914. Since the Gulf of Finland was heavily mined, it was not until 1919 that the surrounding seas were declared safe for shipping, that the light was lit again.
After the war the military value of Bengtskär increased as part of the defence system of independent Finland. In Second World War (1941) Soviet Union made a suprise attack to island. After a bloody battle, the small Finnish garrison emerged victorious. Intermittent repairs to the facility continued during the post-war period.