A deck of playing cards may look simple, but hidden among the pips, suits, numbers, and portraits are surprising secrets, some of which are hundreds of years old.
That box of pasteboards in bold, primary colors is one of the most recognizable things in the world, but the more we look, the more it seems like those cards are filled with mystery.
Cards are special things. Each deck is a marvel of engineering, design, and history, loaded with secrets that have been whispered and distorted with each retelling. Here are 10 secrets about a standard deck of playing cards that have been hiding in plain sight all this time.