The city centre of Pretoria still retains its original name and is one of South Africa’s three capital cities (the others are Cape Town and Bloemfontein), the rest of this part of northern Gauteng is now called the City of Tshwane Metropolitan Municipality.
The City of Tshwane Metropolitan Municipality was established on 5 December 2000 through the integration of various municipalities and councils that had previously served the greater Pretoria area and surrounding areas.
The City of Tshwane boundary was further amended on 28 May 2008 through a proclamation in the Government Gazette that incorporates the former Metsweding District Municipality, including Dinokeng tsa Taemane (Cullinan) and Kungwini (Bronkhorstspruit), into the City of Tshwane. The incorporation enlarged Tshwane to 6 345km2. Currently, Tshwane stretches almost 121km from east to west and 108km from north to south, making it the third-largest city in the world after New York and Tokyo/Yokohama. It also makes up about 30% of Gauteng, which is 19 055km2 in extent.