Northern Rhodesia had been detained without trial, following claims that they had planned the indiscriminate killing of Europeans and Asians, and of African opponents, the so-called "murder plot". Shortly afterwards, on 12 March 1959, the governor of Northern Rhodesia also declared a State of emergency there, arrested 45 Zambia African National Congress including Kaunda and banned the party. Kaunda later received a 19-month prison sentence for conspiracy, although no credible evidence of conspiracy was produced. The declaration of States of emergency in both Northern Rhodesia and Nyasaland marked the end of attempts by their nationalist parties to work within the colonial system,
Southern Rhodesia Treaty, which was signed by King Lobengula of the Ndebele people. "Southern" was first used in 1898 and dropped from normal usage in 1964, on the break-up of the Federation of Rhodesia and Nyasaland. "Rhodesia" then remained the name of the country until the creation of Zimbabwe Rhodesia in 1979. Legally, from the British perspective, the name Southern Rhodesia continued to be used until 18 April 1980, when the Republic of Zimbabwe was promulgated. The British government agreed that Rhodes' company, the British South Africa Company (BSAC), would administer the territory stretching from the Limpopo to Lake Tanganyika under charter