According to research by some foreign experts, the title "JOKER" appeared between 1860 and 1880. As for where this title came from? Some people say that this is related to the No. 0 card in the main Tarot deck. This card is called "Fool" and its pattern is a homeless man. This card is also quite special in Tarot. Some people say that this title is related to a kind of card game at that time. Regardless, this designation eventually became the standard. After 1900, most poker manufacturers produced JOKER. In the early days of the JOKER card, the "JOKER" mark was not printed on the corner of the card. It was usually printed below the clown image. The most commonly used text was: "The Jolly Joker", which means the happy clown, which was gradually simplified to "The Joker". " and "Joker", and print this word on the corner of the card. Some cards are even simplified to the letter "J". Not all JOKERs are printed with the word "JOKER". Another common marking method is a circled five-pointed star on the corner of the card. We still habitually call it JOKER. The development of card games promoted the development of cards. At the beginning of the 20th century, the second JOKER appeared in poker. The now popular 54-card poker game was formed. Poker cards produced in Asia and North America have two JOKERs. However, among the poker cards produced in Asia, the two JOKERs are usually divided into different sizes, that is, the red JOKER is used to mark the king. This card is usually a colored card, and the other one is called the small king. The JOKER pattern is usually the same as the King, but it is a black and white pattern. In the poker cards purchased from Europe and the United States, it is sometimes found that the two JOKERs are not necessarily different. This is because the popular card games in the two places are different. After World War II, with the development of card games, more JOKER pokers appeared in Europe. According to reports, Zwicker, a card game now popular in Denmark and Germany, requires 6 JOKERs. Among the cards I have ever seen, the largest deck even has 8 JOKER. The pattern of JOKER is not static. Although the JOKER of traditional standard poker has changed a lot, the card usually has the image of a clown. Nowadays, the JOKER in some standard cards is no longer necessarily a clown, but has various variations, such as cartoons, animals, etc., which greatly enriches the content of JOKER. Here, I have to mention the so-called relationship between poker and astronomical calendar. Some people have studied that in poker, the big king represents the sun and the small king represents the moon. If the big and small kings are counted half a point, it means exactly 265 days in a year, and if they are counted a little, it means 366 days in a year. These claims have not been widely recognized. Although there is no denying that poker is related to astronomical calendars, judging from the development history of JOKER, some of the above statements are problematic. JOKER is mainly divided into three categories: 1. Standard JOKER. That is the standard poker JOKER (note 1). This is the most traditional JOKER and the most popular category among collectors. Some people even only collect this type of JOKER. 2. Advertising JOKER. There are many variations of JOKER on billboards, and different products have different JOKER. This type of JOKER usually prints content related to products or trademarks. Some of the card designs are very unique and are very popular among collectors. 3. JOKER of suit poker (Note 2). This type of JOKER has more changes, and the contents of the two JOKERs are generally different. But it would be a pity to remove the JOKER from a deck of poker cards and ruin the entire deck. Not many JOKERs are used for exchange. In addition, the extra cards in the cards are also called extra JOKER (Extra Joker), which are mainly bridge scorecards, poker manufacturer trademarks, etc. Some people also collect these cards, but not many. Most standard poker JOKERs have a clown pattern, but the clown pattern itself has many variations and can be divided into different types. For example, clowns holding musical instruments and playing music can be divided into one category, clowns and animals together can be divided into one category, clowns holding pokers can be divided into one category, clowns holding magic wands can be divided into one category... Individual animals Patterns also occupy a certain proportion in standard poker JOKER. For example, a poker factory in Nanjing has produced a series of animal JOKER, including rabbits, squirrels, butterflies, etc., which are very popular among foreign JOKER collectors.

Common domestic animal JOKER also has various patterns such as elephant, lion, tiger, deer, camel and so on. In recent years, JOKER with cartoon images has also become popular. For example, JOKER with Mickey Mouse pattern appears in many types of poker. Non-clown character patterns can be seen from time to time, such as JOKER in the image of a western cowboy holding a gun in Pirate Poker, and the two brothers holding pokers back to back in Brothers Poker, can all be included in this category.