This change was not well-received with Icelanders, as it in reality translated to reduced autonomy for Iceland. Before 1849, Icelanders had officially ruled themselves as they happened to see fit in domestic matters. But now those matters were falling under the control of parliaments over which Icelanders had no influence. The Danes were reluctant to meet the demands of Icelanders for self-government as set forth during the National Assembly of 1851, in the belief that it would weaken Denmark's control in Schleswig and Holstein. But when said region was annexed by Prussia in 1867, new conditions were created and stöðulögin ("the laws of standing") were passed 1871, which determined the standing of Iceland in relation to the Danish state. In 1874, on the millennial anniversary of the settlement in Iceland, Christian IX became king of Denmark and attended the festivities of the watershed occasion. This opportunity was used to give Iceland its own separate constitution. This constitution was called "Stjórnarskrá um hin sérstaklegu málefni Íslands", and was the basis of Iceland's current constitution.