The phenomenon that there are many kinds and few coins in Qidan (Liao) is one of the miracles in the history of coins in China. According to incomplete statistics, during the nearly 700 years from the founding of the distant Tiaohan to the demise of the Western Liao Dynasty, there were more than 500 kinds of officially minted coins, but the number of each kind was pitiful, and some were only one or two or orphans. Although many Khitan (Liao) coins were annihilated by war and man-made destruction, there are still many Khitan (Liao) coins handed down in this world, and there are still many kinds that can be called the best in China.

First, there is no missing year number in the Khitan (Liao) year number (including the year number in which the short-lived regime only existed for a few days). All the year numbers are Yuan and Casting, and most of them are Xiaoping, Fold 2, Fold 3, Fold 5, Fold 10 and Fold 5. There were hundreds, thousands and tens of thousands of denominations of money in the early days. This situation can only be compared with Song, Ming and Qing Dynasties, but the number of titles in Song Dynasty is not as good as that in Ming and Qing Dynasties, and the system of Tong Yuan casting two coins and five coins is even more rare.

Secondly, the Khitan (Liao) national coins are the first in the history of China coins in terms of variety, quantity and quality. Literary characters, including Hu Shu, Qidan characters and Qidan small characters; In terms of varieties, there are annual money, national money, calendar money, court money, sacrifice money and folk money. In terms of materials, there are gold, silver, copper, iron and lead; Technically, there are casting and hand carving, first casting and then hand carving; In terms of techniques, there are die casting, sand casting, female casting, male casting, convex carving, engraving and shallow carving. The variety, quantity and quality of its national currency money are the best in China.

Third, the amount of gold and silver in the Khitan (Liao State) is unmatched by any dynasty. Basically, every coin variety has gold and silver coins every year, and they are all made of gold, silver, copper, iron and lead.

Fourthly, Lu Ye Abao, the emperor of Liao Dynasty, was granted the throne by Zen Buddhism, and specially minted a circulating currency called "Long live the Millennium", which required continuous casting in past dynasties. It took 3 1 1 year from casting in 907 AD to the extinction of Xiliao 12 18. In the history of coins in China, except for the coins of "Half Liang" (102), "Five Bahts" (739) and "Kaiyuan" (286) in the Qin and Han Dynasties, I'm afraid no coins of any dynasty can be compared with the coins of "Long Live the Millennium" in Qidan (Liao).

Fifthly, the circulation of Khitan (Liao) commemorative coins is the longest in the history of China coins (3 1 1 year).

Sixth, the types, quantity and quality of official folk currency minted by Qidan (Liao) are the highest in all previous dynasties.

You can read this book.