Bonjour,
David is a photographer. He realized his dream on February 11th 1990, when he took a photo of Mandela, who had just been released/freed from prison. He had spent 27 years in prison. He had become a symbol of hope and optimism for South Africa.
David was excited/thrilled. It was the strongest/the most powerful moment of his career. It was an emotional moment because it was the first time Mandela had given a speech in 27 years and people hadn’t seen him for a long time. The media played an important role because the photo was published worldwide = all over the world. It helped fight apartheid.
En espérant t'avoir aidé(e) !