Stephen Puleo will be at the Boston Public Library at 6pm tonight to discuss his book Dark Tide: The Great Boston Molasses Flood of 1919. If you can't make it, head over to the Boston.com Live Chat right now (it begins at noon) and Puleo will tell you anything you want to know about Boston's weirdest and most destructive molasses-related event. 

Puleo was on Fox 25 News this morning, and he explained a bit about why there was 2.3 million gallons of molasses in a holding tank in the first place.