Edit this Published in Radio Diaries #13: The Day Nelson Mandela Became Nelson Mandela Listen 17 min Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/365136/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend The moment Nelson Mandela really became Nelson Mandela was on April 20th, 1964 - fifty years ago today. It happened when he stood up in a stuffy South African courtroom and gave a speech.