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 representatives to the Advisory Council, limiting them to a few nominated members. Following a judgement by the Privy Council that the land in Southern Rhodesia belonged to the British Crown not BSAC, opinion among settlers in Southern Rhodesia turned to favour responsible government and in 1923 this was granted. This left Northern Rhodesia in a difficult position since the British South Africa Company had believed it owned the land in both territories and some settlers suggested that the ownership in Northern Rhodesia should also be referred to the Privy Council. However, the British South Africa Company insisted that its claims