self-government. These were advantages that British Somaliland, which was to be incorporated into the new Somali Republic state, did not have. Although in the 1950s British colonial officials attempted, through various administrative development efforts, to make up for past neglect, the protectorate stagnated. The disparity between the two territories in economic development and political experience would cause serious difficulties when it came time to integrate the two parts. Meanwhile, in 1948, under pressure from their World War II allies and to the dismay of the Somalis, the British ceded official control of the Haud (an important Somali grazing area that was brought under British protection via treaties with the Somalis in 1884 and 1886) and the Ogaden to Ethiopia, based on a treaty they signed in 1897 in which the British ceded Somali territory to the Ethiopian Emperor Menelik in exchange for his help against raids by Somali clans. Britain included the proviso that the Somali nomads would retain their autonomy, but Ethiopia immediately claimed sovereignty over them. This prompted an unsuccessful bid by Britain in 1956 to purchase back the Somali lands it had turned over. The British government also granted administration of the almost exclusively Somali-inhabited Northern Frontier District (NFD) to the Kenyan government despite an informal plebiscite demonstrating the overwhelming desire of the region's population to join the newly formed Somali Republic. A referendum was held in neighboring Djibouti (then known as French Somaliland) in 1958, on the eve of Somalia's independence in 1960, to decide whether or not to join the Somali Republic or to remain with France. The referendum turned out in favour of a continued association with France, largely due to a combined yes vote by the sizable Afar ethnic group and resident Europeans. There was also widespread vote rigging, with the French expelling thousands of Somalis before the referendum reached the polls. The majority of those who voted no were Somalis who were strongly in favour of joining a united Somalia, as had been proposed by Mahmoud Harbi, Vice President of the Government Council. Harbi was killed in a plane crash two years later. Djibouti finally gained its independence from France in 1977, and Hassan Gouled Aptidon, a Somali who had campaigned for a yes vote in the referendum of 1958, eventually wound up as Djibouti's first president (1977–1991). British Somaliland became independent on 26 June 1960 as the State of Somaliland, and