This ballad, written in Welsh and English, tells the story of the mining disaster which occurred at the Universal pit, Senghennydd, on Friday, 24 May 1901. It is recorded that 78 people lost their lives, although it is believed that the total number killed was 82. Twelve years later, the community of Senghennydd would be struck by disaster once again. On 14 October 1913, an explosion at the pit killed 439 men and boys.