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 other British territories were fixed by Orders-in Council. The border between the British Central Africa Protectorate and North-Eastern Rhodesia was fixed in 1891 at the drainage divide between Lake Malawi and the Luangwa River, and that between North-Western Rhodesia and Southern Rhodesia became the Zambezi River in 1898. The area of what became Northern Rhodesia, including Barotseland and land as far as Nyasaland to the east and to Katanga and Lake Tanganyika to the north, was placed under BSAC administration by an Order-in-Council of 9 May 1891, but no BSAC Administrator was sent to Barotseland until 1895, and the first