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,
Northern Rhodesia districts. The British South Africa Company was responsible for building the Rhodesian railway system in the period of primary construction which ended in 1911, when the main line through Northern Rhodesia crossed the Congo border to reach the Katanga copper mines. Rhodes' original intention was for a railway extending across the Zambezi to Lake Tanganyika, but when little gold was found in Mashonaland, he accepted that the scheme to reach Lake Tanganyika had no economic justification. Railways built by private companies needed traffic that can pay high freight rates, such as large quantities of minerals. A line from Kimberley reached