On January 15, 1919, a tank containing 2.3 million gallons of molasses weighing an estimated 26 million pounds burst open, unleashing a sticky flood onto Boston's North End. The 25-foot high wave of goo oozed over the streets at 35 miles per hour, crushing buildings in its wake and killing 21 people. The wave broke steel girders of the Boston Elevated Railway, almost swept a train off its tracks, knocked buildings off their foundations, and toppled electrical poles, the wires hissing and sparking as they fell into the brown flood. The Boston Globe reported that people 'were picked up and...