Prime Minister of Rhodesia held the post until the end of Federation on 31 December 1963. When Northern Rhodesia gained independence as Zambia on 24 October 1964, Southern Rhodesia began to refer to itself simply as "Rhodesia". Prime Minister Ian Smith's government issued a Unilateral Declaration of Independence from Britain in 1965, and he remained Prime Minister when the country was declared a republic in 1970. Under the Internal Settlement in 1979, after a long period of conflict, the country became known as Zimbabwe-Rhodesia, with Abel Muzorewa as its first black Prime Minister. None of these acts were recognised internationally, and under the Lancaster
Northern Rhodesia were unchallengeable and persuaded the United Kingdom government to enter into direct negotiations over the future administration of Northern Rhodesia. As a result, a settlement was achieved by which Northern Rhodesia remained a protectorate but came under the British government, with its administrative machinery taken over by the Colonial Office, while the British South Africa Company retained extensive areas of freehold property and the protectorate's mineral rights. It was also agreed that half of the proceeds of land sales in the former North-Western Rhodesia would go to the Company. On 1 April 1924, Herbert Stanley was appointed as Governor and