The big king represents the sun, and the small king represents the moon.

Based on the astronomical calendar, Westerners set the number of playing cards to 54 in four suits. There are 54 cards in a deck of playing cards, 52 of which are real cards, representing the 52 weeks of the year, and the other 2 are secondary cards (big king and small king). The big king represents the sun and the small king represents the moon.

In a deck of cards, the big and small clowns represent the sun and the moon, so the remaining 52 cards represent the 52 weeks of the year, and the four suits represent the four seasons of the year. Each suit represents The 13 cards represent the 13 weeks of each season. If each suit and card number is calculated as points, the big clown will be calculated as half a point, and the result will be 365 days in an ordinary year. If the big clown is calculated as one point, the result will be 366 days in a leap year. Experts generally believe that the above explanation is not a coincidence, because the design and invention of playing cards are inextricably linked to astrology, divination, astronomy, and calendars. The ghost card is indeed the most special existence in a deck of poker.

Extended information:

The traditional cards with spades, hearts, clubs, and diamonds as their suits were invented by the French in the 14th century, and there were only 52 cards at the beginning. Around 1850, some poker manufacturers began to add the 53rd card to the cards. At that time, this card was only used as a replacement card or advertisement. At that time, this card was not called JOKER, but was called: " Extra card" means extra card.

Since many cards have 53 cards, there are many card games played with 53 cards. Among them, a card game using 53 cards appeared in Mississippi in the United States and soon became popular throughout North America. At that time, poker produced in the United States usually had 53 cards.