The Great Molasses Flood occurred in Boston on January 15, 1919. This disastrous event was caused by the failure of a large storage tank containing molasses, which burst and released a massive wave of the sticky substance. The flood inundated several blocks, causing extensive damage, and resulted in the tragic deaths of 21 people and injuries to many more. The incident highlighted issues related to industrial safety regulations and the accountability of large corporations. This catastrophe remains a significant part of Boston's history and urban lore, illustrating the potential dangers of industrial negligence.