The Great Molasses Flood occurred on January 15, 1919, in Boston, Massachusetts, when a large storage tank filled with molasses burst, unleashing a 25-foot wave of the thick syrup. This unusual disaster resulted in the deaths of 21 people and injuries to approximately 150 others, while also causing extensive damage to buildings and infrastructure in the area. Investigations revealed that the tank's poor construction and the warm weather contributed to the failure, leading to significant changes in industrial regulations and safety standards. The event remains a poignant example of the potential dangers of industrial negligence and has become a part of Boston's historical narrative.

The Great Molasses Flood of 1919 became a symbol of industrial folly, inspiring poets like William Carlos Williams to explore themes of urban tragedy and absurdity. This event entered American folklore, serving as a poignant reminder of the consequences of human hubris in modernist literature.