Northern Rhodesia the election with the Federal party that their voters would vote for the other's candidates in some "national" constituencies, Nkumbula agreed to work in a coalition which had Kaunda as Prime Minister, and the two and their parties worked in reasonable harmony until a pre-independence election on 1964 where, with a much wider franchise, the United National Independence Party gained 55 of the 75 parliamentary seats. The Federation of Rhodesia and Nyasaland was formally dissolved on 31 December 1963, and the country became the independent Republic of Zambia on 24 October 1964, with Kaunda as President. Source: Whitaker's Almanack The
Northern Rhodesia these copper deposits could not be exploited commercially until the Southern Rhodesian railway had extended across the Zambezi and continued northward, to reach the Belgian Congo border, which it did in 1909. By that time, mining had started in Katanga, where rich copper oxide ores occurred near the surface. In Northern Rhodesia, the surface ores were of poorer quality, and copper was only worked intermittently at Bwana Mkubwa, until in 1924 rich copper sulphide ores were discovered about 100 feet below the surface. Prior to 1924, there had not been significant exploitation of Northern Rhodesia's mineral resources: there was some