The Boston Molasses Disaster (also known as the Great Molasses Flood or The Great Boston Molasses Tragedy) occurred on January 15, 1919, in the North End neighborhood of Boston, Massachusetts. A large molasses (treacle) tank burst and a wave of molasses ran through the streets at an estimated 35 MPH (60 km/h), killing twenty-one and injuring 150 others. The event has entered local folklore, and residents claim that the area still sometimes smells of molasses.