betty campbell became the first black headteacher at a welsh school in the 1970s. as a schoolgirl in cardiff she was told that being black and working class would prevent her from achieiving her ambition. today a monument honouring her was unveiled in cardiff. hywel griffith reports. two, one... go! history uncovered. betty campbell's life was, in itself, a lesson in how the power of education and determination can combine. as wales's first ever black head teacher, she worked in cardiff's deprived docklands, refusing to accept that race or gender should define a child's life. i went out to the headmistress and told her that i wanted to be a teacher. and she said, oh, get the idea out of your head right away. you'd have insurmountable problems. and even if that tender age of 15, i knew that she meant if you're black, that's your lot. she was the first to make black