Constitutional historyDuring the , the British forces entered the territory of the Orange Free State and occupied the capital on 13 March 1900. Five months later, on 6 October 1900, the British government declared an official annexation of the full territory of the Orange Free State, despite the fact that the British had not yet occupied the full territory of the state, nor defeated the Free State forces. The Orange Free State government had moved to during the first months of the war and would subsequently convene in the field until the end of the war. From the perspective of the Orange Free State, independence was only lost with the ratification of the on 31 May 1902. Therefore, there existed an ambiguous constitutional situation between 6 October 1900 and 31 May 1902, with two constitutional entities and two governments. On the Boer side, the government was led by state president Martinus Theunis Steyn (1857–1916) until 30 May 1902, when he went on sick-leave and was replaced by general as acting state president. On the British side, Sir Alfred Milner was appointed Administrator of the Orange River Colony on 4 January 1901, with Hamilton John Goold-Adams as lieutenant-governor. Following the end of hostilities Lord Milner visited Bloemfontein on 23 June 1902 and promulgated the new constitution, in the presence of military officials, heads of civil department and representatives of the late Boer government (including General De Wet). He was sworn in as Governor and Commander-in-Chief of Orange River Colony on the same day. From 1902 to 1910, the colony was governed by a single governor: * Alfred Milner, Viscount Milner, in office 23 June 1902 – 1 April 1905; * , in office 2 April 1905 – 7 June 1907; * Sir Hamilton John Goold-Adams, in office 7 June 1907 – 31 May 1910
Self-governmentBy 1904 sentiment was growing for some form of self-government. The Orangia Unie (''Orange Union Party'') was formally constituted in May 1906, after several months of preparation. A similar organisation, called Het Volk, had been formed by the Transvaal Boers in January 1905. Both unions had constitutions almost identical with that of the Afrikaner Bond, a former pan-Afrikaner political movement, and their aims were also similar – to secure the position of the Afrikaners in state and society. The chairman of the ''Orangia Unie'' was J. B. M. Hertzog, and Martinus Theunis Steyn. A second political party, the Constitutional Party (South Africa), Constitutional Party was formed by a group of Burgher (Boer republics), burghers content with British rule. Chairman of the party was Sir John G. Fraser, before the Second Boer War a prominent (pro-British) member of the Volksraad of the Orange Free State. The Constitutional Party had a strong following in Bloemfontein, but not outside the capital. The political programmes of the two parties were very similar, the real difference between them being the attitude towards British annexation and Afrikaner influence. In 1905 Lord Selborne, formerly First Lord of the Admiralty, replaced Viscount Milner as high commissioner for South Africa and governor of the Transvaal Colony, Transvaal and Orange River colonies. Selborne had come to South Africa with a brief to guide the former Boer republics from Crown colony government towards self-government. When Liberal Party (UK), Liberal Party came into office in Britain in December 1905 the process was speeded up, with the decision to give both the Transvaal and Orange River colonies self-government without delay. Selborne accepted the changed situation, and the experiment proved successful. He ceased to be governor of the Orange River Colony on its assumption of self-government in June 1907, but retained his other posts until May 1910, retiring on the eve of the establishment of the
PoliciesIn May 1908, the Orange River Colony took part in an inter-state conference which met at Pretoria and Cape Town, and determined to renew the existing customs convention and to make no alteration in railway rates. These decisions were the result of an agreement to bring before the parliaments of the various colonies a resolution advocating the closer union of the South African states and the appointment of delegates to a national convention to frame a draft constitution. At the eventual National Convention (South Africa), National Convention, former State President M. T. Steyn took a leading and conciliatory part, and subsequently the Orange River legislature agreed to the terms drawn up by the convention for the unification of the four self-governing colonies in the Under the imperial act by which unification was established (31 May 1910) the colony entered the Union under the style of the Orange Free State Province. Fischer and Hertzog became members of the first Union government, while A. E. W. Ramsbottom became the first administrator of the Orange Free State as a province of the Union.
1904 censusPopulation figures for the 1904 censusSmuts I: The Sanguine Years 1870–1919, W.K. Hancock, Cambridge University Press, 1962, pg 219
See also* Orange River Sovereignty * Free State Province * Vicariate Apostolic of Orange River for the Catholic missionary history