St. Paddy's Day is tomorrow so I'm celebrating with this fun quiz about greenbacks, or as it's commonly known, money. After you've racked your brain reward yourself with a shamrock shake [1]! Here's a little piece of trivia to get you started: the term greenback dates back to 1861, when Demand Notes (with their green backs) were issued by the U.S. and used to finance the Civil War.

Source [2]