150th anniversary of Sheffield disaster

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

The flooding tragedy nobody has ever heard of: 150th anniversary of Sheffield disaster where at least 240 died when a new dam burst - but historians are dismayed it has been forgotten about

Dale Dyke dam was built to provide drinking water to the industrial heartland but burst on the night of March 11, 1864, unleashing a torrent which destroyed more than 700 buildings and 20 bridges. Some 240 people died instantly, half of them children, and many more were killed later as diseases spread through the stagnant water. But historians, who will mark the 150th anniversary of the disaster on Tuesday, say it has been largely forgotten because it killed northern working-class people. Pictured: The ruins of the Rowell Bridge Wheel (left), Hill Bridge in Hillsborough (top right) and Malin Bridge (bottom right), where more than 100 people died.