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,
Company rule in Rhodesia of the century, Rhodes's Company held a vast, land-locked country, bisected by the Zambezi river. It officially named this land Rhodesia in 1895, and ran it until the early 1920s. The area south of the Zambezi became Southern Rhodesia, while that to the north became North-Western and North-Eastern Rhodesia, which were joined in 1911 to form Northern Rhodesia. Within Northern Rhodesia, there was a separate Kingdom called Barotseland which later became a British protectorate alongside other territories under the British sphere of influence. Each territory was administered separately, with an administrator heading each territorial legislature. In Southern Rhodesia, which attracted