The most successful currency in history has been in circulation for 1,300 years. Why is there a woman’s fingernail print engraved on the back?

China has a long history. Over the long years, the country has gone through many changes, and great changes have also taken place in some social customs and cultural products, one of which is currency. In order to solve the problem of inconvenient portability of goods and goods exchange at that time, people often used shell stones as currency at the beginning. Later, people switched to bronze as currency, and finally gold, silver, copper coins and silver notes appeared.

Nowadays, we often use gold or RMB for transactions. If we want to find the most successful currency over the long years, we have to say the Kaiyuan Tongbao of the Tang Dynasty. This currency is The most famous currency in the history of world economics. It has been in circulation for 1,300 years, and the empress's nail prints are engraved on the back.

Kaiyuan Tongbao was the currency of the Tang Dynasty. When the Tang Dynasty was first established, it followed the currency of the Sui Dynasty. However, this currency was too small, too light, and particularly easy to confuse. Therefore, in order to rectify the chaotic monetary system, the emperor chose to abolish the currency of the Sui Dynasty. Kaiyuan Tongbao was minted, and this currency replaced the remaining currencies in society. Then such a currency came into people's sight.

At the beginning, the four characters "Kaiyuan Tongbao" were written by the calligrapher Ouyang Xun.

This currency has lasted for more than 1,300 years. What is even more shocking is that there is a nail mark of the empress on the back of this currency. It turns out that in order to show his favor, Emperor Gaozu of the Tang Dynasty granted permission for his children to mint currency. right. One day, Empress Changsun looked very curious, so she picked it up and looked at it. While viewing it, she accidentally left a trace of her fingernail. The currency was made from molds, leaving a moon-shaped nail pattern.