When was Zambia colonised?

Northern Rhodesia, which included present-day Zambia, was colonised by the British South Africa Company in 1890 and was made a protectorate in 1924. In 1953, Northern Rhodesia became part of the Federation of Rhodesia and Nyasaland, which was dissolved in 1963. Northern Rhodesia became the independent Republic of Zambia on 24 October 1964.