"Middle Kingdom" was used to refer to civilizations around the Yellow River Valley before the empires leading to modern-day China began to form. The court cards use exquisitely detailed line art of Chinese deities and people, while the card back is a great freehand drawing with interpretations of Chinese lattice borders and of course, a dragon. The card back combines a dragon with another famous Chinese element, the Yin-Yang symbol. This symbol represents positive and negative, order and chaos, male and female. Combining elements of Chinese architecture, latticework, and dragon art, the tuck box is the perfect complement to the cards.US PLAYING CARD COMPANY