Province of NE South Africa, bordering Zimbabwe to the north; area 262,499 sq km/101,325 sq mi; population (1985) 7,532,000. Its capital is Pretoria, and towns include Johannesburg, Germiston, Brakpan, Springs, Benoni, Krugersdorp, and Roodepoort. Products include diamonds, coal, iron ore, copper, lead, tin, manganese, meat, maize, tobacco, and fruit. The main rivers are the Vaal and Limpopo with their tributaries. Swaziland forms an enclave on the Natal border. It was settled by Voortrekkers, Boers who left Cape Colony in the Great Trek from 1831. Independence was recognized by Britain 1852, until the settlers' difficulties with the conquered Zulus led to British annexation 1877. It was made a British colony after the South African War 1899-1902, and in 1910 became a province of the Union of South Africa.