Transvaal Colony in the context of "South Africa Act 1909"

The Union of South Africa (Dutch: Unie van Zuid-Afrika; Afrikaans: Unie van Suid-Afrika, pronunciation) was a British Dominion and, later, a Commonwealth realm in southern Africa from 1910 to 1961. It was the historical predecessor to the present-day Republic of South Africa. It came into existence on 31 May 1910 with the unification of the Cape, Natal, Transvaal, and Orange River colonies. It included the territories that were formerly part of the South African Republic and the Orange Free State.

Following World War I, the Union of South Africa was a signatory of the Treaty of Versailles and became one of the founding members of the League of Nations. It was mandated by the League with the administration of South West Africa (now known as Namibia). South West Africa became treated in most respects as another province of the Union, but it never was formally annexed.

Southern Rhodesia was a self-governing British Crown colony in Southern Africa, established in 1923 and consisting of British South Africa Company (BSAC) territories lying south of the Zambezi River. The region was informally known as South Zambesia until Britain annexed it at the behest of the British South Africa Company. The colony was then renamed for that company’s founder, Cecil Rhodes. The bounding territories were Bechuanaland (Botswana), Northern Rhodesia (Zambia), Portuguese Mozambique (Mozambique) and the Transvaal Republic (for two brief periods known as the British Transvaal Colony; from 1910, the Union of South Africa and, from 1961, the Republic of South Africa). Since 1980, the colony's territory is the independent nation of Zimbabwe.

This southern region, known for its extensive gold reserves, was first purchased by the BSAC's Pioneer Column on the strength of a mineral concession extracted from its Matabele king, Lobengula, and various majority Mashona vassal chiefs in 1890. Though parts of the territory were laid-claim-to by the Bechuana and Portugal, its first people, the "Bushmen" (or Sān or Khoisan), had possessed it for countless centuries beforehand and had continued to inhabit the region. Following the colony's unilateral dissolution in 1970 by the Republic of Rhodesia government, the Colony of Southern Rhodesia was re-established in 1979 as the successor state to the Republic of Zimbabwe Rhodesia which, in-turn, was the predecessor state of the Republic of Zimbabwe. Its only true geographical borders were the rivers Zambezi and Limpopo, its other boundaries being (more or less) arbitrary, and merging imperceptibly with the peoples and domains of earlier chiefdoms of pre-colonial times.

The South African Republic (Dutch: Zuid-Afrikaansche Republiek, abbreviated ZAR; Afrikaans: Suid-Afrikaanse Republiek), also known as the Transvaal Republic, was a landlocked independent Boer republic in Southern Africa which existed from 1852 to 1902, when it was annexed into the British Empire as a result of the Second Boer War.

The ZAR was established as a result of the 1852 Sand River Convention, in which the British government agreed to formally recognise independence of the Boers living north of the Vaal River. Relations between the ZAR and Britain started to deteriorate after the British Cape Colony expanded into the Southern African interior, eventually leading to the outbreak of the First Boer War between the two nations. The Boer victory confirmed the ZAR's independence; however, Anglo-ZAR tensions soon flared up again over various diplomatic issues. In 1899, war again broke out between Britain and the ZAR, which was swiftly occupied by British forces. Many Boer combatants in the ZAR refused to surrender, leading British commander Lord Kitchener to order the adoption of several scorched-earth policies. In the treaty which ended the war, the ZAR was transformed into the Transvaal Colony, and eventually the Union of South Africa. During World War I, there was a failed attempt at resurrecting the republic in the Maritz rebellion.

The British office of high commissioner for Southern Africa was responsible for governing British possessions in Southern Africa, latterly the protectorates of Basutoland (now Lesotho), the Bechuanaland Protectorate (now Botswana) and Swaziland (now Eswatini), as well as for relations with autonomous governments in the area.

The office was combined with that of Governor of Cape Colony from 1847 to 1901, with that of the governor of Transvaal Colony 1901 to 1910, and with that of Governor-General of South Africa from 1910 to 1931. The British government appointed the Governor-General as High Commissioner under a separate commission. In addition to responsibility for Basutoland, Bechuanaland and Swaziland, he held reserve powers concerning the interests of the native population of Southern Rhodesia. The post was abolished on 1 August 1964.

South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. Its nine provinces are bounded to the south by 2,798 kilometres (1,739 miles) of coastline that stretches along the South Atlantic and Indian Ocean; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; to the east and northeast by Mozambique and Eswatini; and it encloses Lesotho. Covering an area of 1,221,037 square kilometres (471,445 square miles), the country has a population of over 63 million people (the 6th largest in Africa). Pretoria is the administrative capital, while Cape Town, as the seat of Parliament, is the legislative capital, and Bloemfontein is regarded as the judicial capital. The largest, most populous city is Johannesburg, followed by Cape Town and Durban.

Archaeological findings suggest that various hominid species existed in South Africa about 2.5 million years ago, and modern humans inhabited the region over 100,000 years ago. The first known people were the indigenous Khoisan, and Bantu-speaking peoples who migrated, in waves, from west and central Africa to the region 2,000 to 1,000 years ago. In the north, the Kingdom of Mapungubwe formed in the 13th century. In 1652, the Dutch established the first European settlement at Table Bay, Dutch Cape Colony. Its invasion in 1795 and the Battle of Blaauwberg in 1806 led to British occupation. The Mfecane, a period of significant upheaval, led to the formation of various African kingdoms, including the Zulu Kingdom. The region was further colonised, and the Mineral Revolution saw a shift towards industrialisation and urbanisation. Following the Second Boer War, the Union of South Africa was created in 1910 after the amalgamation of the Cape, Natal, Transvaal, and Orange River colonies, becoming a republic after the 1961 referendum. The multi-racial Cape Qualified Franchise in the Cape was gradually eroded, and the vast majority of Black South Africans were not enfranchised until 1994.

The Cullinan Diamond is the largest gem-quality rough diamond ever found, weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable interest, it was still unsold after two years. In 1907, the Transvaal Colony government bought the Cullinan and Prime Minister Louis Botha presented it to Edward VII. It was then cut by Joseph Asscher & Co. in Amsterdam.

Cullinan produced stones of various cuts and sizes, the largest of which is named Cullinan I, and named the Great Star of Africa by Edward VII, and at 530.4 carats (106.08 g) it is the largest cut clear-diamond in the world. The stone is mounted in the head of the Sovereign's Sceptre with Cross. The second largest cut clear-diamond is Cullinan II or the Second Star of Africa, weighing 317.4 carats (63.48 g), mounted in the Imperial State Crown. Both are part of the Crown Jewels of the United Kingdom. Seven other major diamonds, weighing a total of 208.29 carats (41.66 g), were privately owned by Elizabeth II, who inherited them from her grandmother, Queen Mary, in 1953. The Queen also owned minor brilliants and a set of unpolished fragments.

Field Marshal Jan Christian Smuts, OM, CH, DTD, ED, PC, KC, FRS (baptismal name Jan Christiaan Smuts, 24 May 1870 – 11 September 1950) was a South African statesman, military officer and philosopher. In addition to holding various military and cabinet posts, he served as Prime Minister of the Union of South Africa from 1919 to 1924 and 1939 to 1948.

Smuts was born to Afrikaner parents in the British Cape Colony. He was educated at Victoria College, Stellenbosch, before reading law at Christ's College, Cambridge, on a scholarship. He was called to the bar at the Middle Temple in 1894 but returned home the following year. In the leadup to the Second Boer War, Smuts practised law in Pretoria, the capital of the South African Republic. He led the republic's delegation to the Bloemfontein Conference and served as an officer in a commando unit following the outbreak of war in 1899. In 1902, he played a key role in negotiating the Treaty of Vereeniging, which ended the war and resulted in the annexation of the South African Republic and Orange Free State into the British Empire. He subsequently helped negotiate self-government for the Transvaal Colony, becoming a cabinet minister under Louis Botha.