439 Miners Died In Minutes — And A Mystery Investigators Still Can't Solve, Over 100 Years Later

On the morning of 14 October 1913, a firedamp explosion tore through the Universal Colliery at Senghenydd in the Aber Valley, South Wales — killing 439 men and boys in minutes. It remains the deadliest mining disaster in British history, and the second major explosion to strike the same pit in just twelve years. This is the full story of the Senghenydd mining disaster: the coalfield boom that built the village, the safety warnings that went unheeded for nearly a year, the morning the ground shook and the pit head vanished under a column of black dust, and the entire generation of husbands, fathers and sons the Aber Valley lost in a single blast. The documentary follows the inquiry that came after, the outrage it caused across Britain, the memorial that stands on the site today — and a mystery local historians are still trying to solve, more than a hundred years later. 👍 If this story moved you, hit like — it costs nothing but helps this channel keep telling these forgotten stories properly. 💬 Which part of this story did you not know before? Tell me in the comments — I read every one. 🔔 Subscribe and turn on notifications so you don't miss the next coalfield tragedy documentary — new episodes every week. 📖 Sources & further reading: Senghenydd colliery disaster — Wikipedia: https://en.wikipedia.org/wiki/Senghenydd_c... Aber Valley Heritage Group — official history of the 1913 Universal Colliery Disaster: https://www.abervalleyheritage.co.uk/1913-... #Senghenydd #MiningDisaster #BritishHistory #WelshHistory #Documentary