when did denmark lose schleswig and holstein to prussia
History of Schleswig-Holstein In March 1848 these differences led to an open uprising by the German-minded Estate assemblies in the duchies in support of independence from Denmark and of close association with the German Confederation. The military intervention of Prussia helped the uprising: the Prussian army drove Denmark's troops from Schleswig and Holstein.
Danish India Crappe had sailed on the scouting freighter Øresund one month prior to the main fleet. Øresund had encountered Portuguese vessels off the Karaikkal coast and was sunk, with most of the crew killed, or taken prisoner. The heads of two crew members were placed on spikes on the beach as a warning to the Dano-Norwegians. Crappe and 13 of the crew however had escaped the wreck, making it to shore where they were captured by Indians and taken to the Nayak of Tanjore (now Thanjavur in Tamil Nadu). The Nayak turned out to be interested in trading opportunities and Crappe managed to negotiate a treaty granting them the village of Tranquebar (or Tharangamabadi)[9] and the right to construct a "stone house" (Fort Dansborg) and levy taxes.[10] This was signed on 20 November 1620.