Bulverket
The Bulverket is the remnants of a large wooden fortification or bulwark at Lake Tingstäde on the island of Gotland, Sweden. When built, it consisted of a platform with houses surrounded by a double palisade with the entire construction around in diameter. According to a 1989 archeological survey, the structure was built in the 1130s and may have been used for less than a century. Although its original purpose is unknown, theories suggest it was either used as a shelter during the turbulent times on Gotland at the end of the Viking Age or that it was the site of a last stand. Among the archeological finds at the Bulverket are the remains of three boats. One of these served as a model for the reconstruction of a Viking boat, the Krampmacken, in 1980. Krampmacken has subsequently made several journeys following old Viking waterways through Eastern Europe. Etymology The name Bulverket originates from the old Swedish words bul, meaning "log", and verk which refers to something "built". It is related to the English word "bulwark", a form of fortification, as well as the Dutch bolwerk with the same meaning and the Swedish bålverk. Discovery It is likely that the Bulverket