When Cardiff's first Welsh language secondary school, Ysgol Gyfun Gymraeg Glantaf, opened in September 1978, protesters gathered to greet pupils coming off the school bus with posters proclaiming 'Welshies go home'.
Today, Wales' capital has three Welsh language secondary schools, 15 Welsh-medium primaries, shops that would like nothing more than to do all their business in Welsh, Welsh language university and college courses. If those protesters had hoped to stop Cardiff becoming a Welsh-language city, they failed. And no-one is standing in the way of Welsh any more. The city has become comfortable with its two tongues.
We've spoken to people who were there on that day in September 1978 and who have been part of the story of the transformation of Welsh in the city to this day.
