Add Yahoo as a preferred source to see more of our stories on Google. Pantry ingredients lined up in glass jars - Aafia Tanvir/Shutterstock It's a quiet evening in May 1878 when a massive explosion ...

It's a quiet evening in May 1878 when a massive explosion rocked Minneapolis as the Washburn A Mill -- the largest flour mill in the world at the time -- exploded, leaving over a dozen dead. The cause ...