67 minutes of charitable acts mark Nelson Mandela's 67 years of public service
18 July 2013 Last updated at 19:17 BST
Nelson Mandela is spending his 95th birthday in hospital in Pretoria, as events take place around the world and in South Africa in his honour.
The former president and anti-apartheid leader has been critically ill with a recurring lung infection since 8 June.
South Africans have been urged to mark Mr Mandela's 67 years of public service with 67 minutes of charitable acts.
Karen Allen reports.