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
Rise, O Voices of Rhodesia Rhodesia" in 1974. The national anthem lost its legal status in December 1979, when the UK took interim control of the country pending its internationally recognised independence as Zimbabwe five months later. Rhodesia's use of the well-known Beethoven tune has since caused the playing of "Ode to Joy" to be controversial in modern-day Zimbabwe. A dispute over the terms for the granting of full statehood to the self-governing colony of Rhodesia led its predominantly white minority government, headed by Prime Minister Ian Smith, to unilaterally declare independence from the UK on 11 November 1965. As Whitehall had been insisting on