Oh, Monday. Arguably the most terrible day of the week, Monday is one that people dread. It's so bad that "a case of the Mondays" is essentially like a disease. No one wants to be in a Monday mood ...

Black Monday happened on Oct. 19, 1987. Across the world, an estimated $1.71 trillion disappeared as stocks unexpectedly crashed. In the U.S., the Down Jones Industrial average dropped 22.6% during a ...