The founding of Pretoria as the capital of the South African Republic can be seen as marking the end of the Boers’ settlement movements of the Great Trek.
During the First Boer War, the city was besieged by Republican forces in December 1880 and March 1881. The peace treaty which ended the war was signed in Pretoria on 3 August 1881 at the Pretoria Convention.
The Second Boer War resulted in the end of the Transvaal Republic and start of British hegemony in South Africa. The city surrendered to British forces under Frederick Roberts on 5 June 1900 and the conflict was ended in Pretoria with the signing of the Peace of Vereeniging on 31 May 1902.
The Pretoria Forts were built for the defence of the city just prior to the Second Boer War. Though some of these forts are today in ruins, a number of them have been preserved as national monuments.
The Boer Republics of the ZAR and the Orange River Colony were united with the Cape Colony and Natal Colony in 1910 to become the Union of South Africa. Pretoria then became the administrative capital of the whole of South Africa, with Cape Town the legislative capital. Between 1910 and 1994, the city was also the capital of the province of Transvaal. (As the capital of the ZAR, Pretoria had superseded Potchefstroom in that role.)
On 14 October 1931, Pretoria achieved official city status. When South Africa became a republic in 1961, Pretoria remained its administrative capital.
Source: https://en.wikipedia.org/wiki/Pretoria
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Related Pretoria Links
https://www.sa-venues.com/attractionsga/pretoria-metro.htm
https://gopretoria.co.za/pretoria-tourism-offices