Southern Rhodesia more amenable to allowing black nationalism than the Southern Rhodesians. Accordingly, Britain granted independence to Northern Rhodesia on 24 October 1964. However, when the new nationalists changed its name to "Zambia" and began tentatively at first and later in rapid march an Africanisation campaign, Southern Rhodesia remained a British colony, resisting attempts to bring in majority rule. The colony attempted to change its name to "Rhodesia" although this was not recognised by the United Kingdom. The majority of the Federation's military and financial assets went to Southern Rhodesia, since the British Government did not wish to see them fall into
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