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
1964 Southern Rhodesian independence referendum made a Unilateral Declaration of Independence, making the country a de facto independent state until returning to British colonial rule in 1979 following the Lancaster House Agreement.The British Government did not accept Southern Rhodesian independence as the referendum was not representative of all of Southern Rhodesia. Voter turnout was 61.9%. 1964 Southern Rhodesian independence referendum A referendum on independence was held in Southern Rhodesia on 5 November 1964. The question put to voters was "Are you in favour of or against Southern Rhodesia obtaining independence on the basis of the 1961 Constitution of Southern Rhodesia. Ian Smith called a meeting