Public holidays in Rhodesia, a historical region in southern Africa equivalent to today's Zimbabwe and Zambia—formerly Southern and Northern Rhodesia, respectively—were largely based around milestones in the region's short history. Annual holidays marked various aspects of the arrival of white people during the 1880s and 1890s, as well as the respective unilateral declarations of independence (1965) and of republican government (1970). On these days, most businesses and non-essential services closed. A number of Christian holidays were also observed according to custom, in the traditional British manner, and referred to in official documents by name—Christmas Day, for example, or Easter Monday.
Rhodesian non-work days were first defined in 1895, by The Bills of Exchange Regulations passed by Leander Starr Jameson, the second administrator of the territory appointed by the British South Africa Company. Holidays were instituted along traditional British lines, with some others created exclusively for Rhodesia: Shangani Day, on 4 December, marked the anniversary of the Shangani Patrol being killed in battle, while Rhodes's Day and Founders' Day—respectively commemorating Company chief Cecil Rhodes and his contemporaries—were held consecutively, starting on the first or second Monday of each July, to create the annual four-day "Rhodes and Founders' 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.