1919: Year Boston’s North End molasses disaster took place on Jan. 15.

50: Height in feet, and 240 feet around, of the cast-iron molasses holding tank

2.3 million: Number of gallons of molasses that burst out of the tank

30: Height in feet of the molasses tsunami that plowed through the streets

21: Number of people killed; 150 injured

Source: www.cnn.com