Bornholm is the result of a merger of the five former (1 April 1970 until 2002) municipalities on the island (Allinge-Gudhjem, Hasle, Nexø, Rønne and Aakirkeby) and the former Bornholm County. Bornholm Regional Municipality was also a county in its own right during its first four years from 1 January 2003 until 31 December 2006. From 1 January 2007 all counties were abolished, and Bornholm became part of the Capital Region of Denmark whose main responsibility is the health service. The municipality still retains its name Bornholm "Regional" Municipality. The island had 21 municipalities until March 1970, of which 6 were
Battle of Bornholm (1456) compared to the Danish and Livonian 16, was victorious; the outcome demonstrated the importance of light, fast ships which could attack quickly and with the element of surprise. The battle helped to establish a naval blockade of the Teutonic state in Prussia, and together with the subsequent and more significant Polish-Prussian naval victory in the Battle of Vistula Lagoon contributed to the overall victory of Poland in the Thirteen Years' War. Battle of Bornholm (1456) The Battle of Bornholm was a naval battle which took place near the Danish island of Bornholm, between privateers from the city of Gdańsk (Danzig)