Oaks explosion: The worst mining disaster in England kills 361 miners and rescuers.
The Oaks Colliery explosion was a British mining disaster which occurred on 12 December 1866, killing 361 miners and rescuers at the Oaks Colliery at Hoyle Mill near Stairfoot in Barnsley, West Riding of Yorkshire. The disaster centred upon a series of explosions caused by firedamp, which ripped through the underground workings. It is the worst mining accident in England and the second worst mining disaster in the United Kingdom, after the Senghenydd colliery disaster in Wales.