Public holidays in Rhodesia weekend". Shangani Day was replaced as a public holiday by Occupation Day in 1920, but continued to be unofficially marked thereafter. Occupation Day, held on 12 September each year, marked the anniversary of the arrival of the Pioneer Column at Fort Salisbury in 1890, and their raising of the Union Jack on the kopje overlooking the site. It was renamed Pioneers' Day in 1961. Southern Rhodesia effectively became the entirety of Rhodesia in 1964 when Northern Rhodesia became independent as Zambia. After Southern Rhodesia's colonial government unilaterally declared independence from Britain on 11 November 1965, the anniversary became celebrated as
Northern Rhodesia Godfrey Huggins, the Prime Minister of Southern Rhodesia because of opposition from Africans and from within his own party. He did not entirely rule out federation, which had been proposed by a conference held at Victoria Falls in 1949 between the Southern Rhodesian government, and the elected, or "unofficial" members of the Northern Rhodesia Legislative Council led by Roy Welensky, without any Africans present. It was left to his successor in post in 1950 to 1951, James Griffiths, to begin exploratory talks with Huggins and Welensky representing the white minorities of both Rhodesias, subject to the opinion of the majority