Betty Campbell, from Cardiff, was Wales' first black headteacher and an anti-apartheid campaigner.
She told ITV News how meeting Nelson Mandela influenced not only her personal life, but also her professional one.
Betty said: "What a great man he was during his lifetime. I know there's a lot being said about him on the worldwide stage, but I don't think people realise the affect he had on ordinary people in the street; on children in school.
"Look at what he went through - but he still came out on top. I think if that philosophy can be embedded in our kids, then most of them should do very well in life."
Six-year-old Emma Williams was invited to sit on Nelson Mandela's lap when he visited Wales in June 1998. Now 22, she speaks to ITV News.
Nelson Mandela's first ever television interview was given to ITN reporter Brian Widlake in May 1961.
Former ITV News presenter Sir Trevor McDonald was the first journalist to interview Nelson Mandela after his release from prison in 1990.