found:City of Johannesburg official website, viewed 29 June 2004(During the apartheid era, the Johannesburg area was divided into 11 local authorities, each run as a separate entity; in 1995, Johannesburg annexed the surrounding towns (Soweto, Alexandra, Sandton, Randburg, etc.), carving the area into four regions governed by a central metropolitan council and four regional councils; this was replaced in 1999/2000 by a more centralized system with a city manager and an executive mayor, who has overall strategic and political responsibility for the city)