Philip Thomas was a ten year old pupil at Pantglas Junior School in Aberfan when a coal tip collapsed and slid downhill. His school was destroyed and he was left buried in the rubble.
Although he survived, he lost three fingers and was left needing hospital treatment for several years to treat a variety of serious injuries.
Tonight ITV Cymru Wales continues to mark the 50th anniversary of the Aberfan disaster with a documentary focusing on Philip's story.
The tragedy claimed the lives of 116 children and 28 adults. Philip and fellow survivors, rescuers and those who lost loved ones remember the events of the day and explain why the tragedy should never be forgotten.
Aberfan: The Day Our Lives Changed is on ITV Cymru Wales at 8pm on Wednesday 19th October. This and other programmes by ITV Cymru Wales are available for catch up viewing here