How did playing cards come about. Regarding this issue, it has caused controversy abroad. Italians say: The Venetians were the first to invent playing cards in the world. Ancient Venetian merchants went out to do business and invented the use of playing cards to calculate dates and entertain themselves. The French said that playing cards were designed in 1392 by a scholar for the entertainment of Charles VI, the mentally ill French emperor. Belgians say that playing cards appeared in Belgium as early as 1379. There is still a document from a Swiss monk preserved in the British Museum, which records that playing cards had already been passed down to Switzerland in 1377.

Others abroad believe that playing cards should be invented by the Chinese. Because during the Song Dynasty in our country, there was a popular playing card called "Leaf Play" among the people (called "Leaf Play", which is the size of two fingers. The "Leaf Play" is 8 centimeters long and 2.5 centimeters wide, and is made of silk and paper, with patterns printed on wooden plates). They believed that this type of playing card was introduced to foreign countries by merchants and missionaries during the Ming, Song, and Yuan dynasties. Inspired by this, the West transformed it into the popular playing card today.

The design of playing cards is very wonderful, it is based on the calendar. Why is a deck of playing cards 52 (excluding big and small cards)? This is because there are 52 weeks in a year. Why are there four different suits of playing cards: spades, blocks, grass flowers, and spades? It symbolizes the four seasons of spring, summer, autumn, and winter in a year. Therefore, it is not difficult to imagine why each suit has 13 cards, which means there are 13 weeks in a season.