The advent of a Liberal administration under Sir Henry Campbell-Bannerman in Great Britain in Dec. 1905 completely altered the political situation in the late Boer States. The previ ous (Conservative) Government had in March 1905 made public a form of representative government, intended to lead up to self government for the Transvaal, and had intimated that a similar constitution would be subsequently conferred on the Orange Colony. The Campbell-Bannerman administration decided to do without this intermediary step in both colonies. It was not, how ever, until July I, 1907, that the letters-patent conferring self government on the colony were promulgated, the election for the legislative assembly taking place in November following. They resulted in the return of 29 members of the Oranjie Unie, five Constitutionalists and four Independents. The Constitutionalists won four of the five seats allotted to Bloemfontein, Sir John Fraser being among those returned. A ministry, which included Generals J. B. M. Hertzog and Christian de Wet, was formed by Abraham Fischer, one of the leading members of the old volksraad. Steyn's ill-health prevented his taking office, but he wielded almost as much power as when he had been president of the country.
The colony took part in May 1908 in an inter-State conference which 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 vari ous colonies a resolution advocating the closer union of the South African States and the appointment of delegates to a national con vention to frame a draft constitution. In this convention Steyn took a leading and conciliatory part, and subsequently the Orange River Colony legislature agreed to the terms drawn up by the con vention for the unification of the four self-governing colonies. Under the imperial act by which unification was established (May 31, 1910) the colony entered the Union under the style of the Orange Free State Province. (For the union movement
see SOUTH AFRICA, UNION OF.) Fischer and Hertzog became mem bers of the first Union ministry, while Dr. A. E. W. Ramsbottom, formerly colonial treasurer, became the first administrator of the Free State as a province of the Union.
The province followed Hertzog when he parted from Botha on the racial issue and it became the stronghold of the Dutch Na tionalists. With the exception of one of the Bloemfontein divi sions they had a majority in every parliamentary constituency in the province. Up to his death in 1916 Steyn's influence with the Dutch section of the people continued powerful. In the crisis caused by the World War Steyn, supported by Hertzog, opposed operations against the Germans in South-West Africa. There fol lowed the rebellion of de Wet, who drew his chief strength from the Free State. On Steyn's death Hertzog became the undisputed leader of the Dutch Nationalists and after the general election of 1924 he was chosen as prime minister of the Union. In internal affairs the province has been governed on progressive lines. Its interests remain predominantly agricultural.