SA: Rivonia ANC raid remembered 50 years on
11 July 2013 Last updated at 09:09 BST
On 11th July 1963 on a small farm near Johannesburg, a police raid took place which proved a pivotal moment for South Africa's anti-apartheid struggle.
Nelson Mandela was already in prison, but police seized other top leaders of the ANC's military wing, and found evidence which led to Mandela's life sentence.
Mike Wooldridge reports.