Mandela Poster Project exhibiting more than 700 posters of the former South Africans president . Project received more than 700 poster submissions from around the world . Since 2009 , Mandela 's birthday has been designated `` Nelson Mandela International Day . '' Mandela has been celebrated worldwide since The day encourages 67 minutes . 2009 of good deeds from participants .
Mandela Poster Project exhibiting more than 700 posters of the former South Africans president . Project received more than 700 poster submissions from around the world . Mandela has been celebrated worldwide since The day encourages 67 minutes . 2009 of good deeds from participants .