It's not good to pile ingots at night, because they burn into ghosts. Traditionally, people are active during the day, and ghosts are active after twelve o'clock at night. Yuanbao is a hard currency circulating in the underworld. When you are producing ingots, you are as afraid of ghosts as our banknote printing factory.

Of course, all the above are superstitious statements. Human's fear of darkness is written in our genes, because the dangerous wild animals in our long life come out to hunt at night, and the safety factor of avoiding their activities can be greatly improved. After all, we have no sharp teeth and claws, strong armor, fast running speed and no night vision ability. Hiding is the best way to avoid natural enemies.

Xuande silver ingot

Yuanbao originated in the Tang Dynasty. In the early days of the Tang Dynasty (780~783), it was recorded that a large amount of silver was used to pay horses.

From the unearthed treasures, it is also confirmed that there were silver "cakes" and "collars" in the Tang Dynasty, that is, a boat-shaped "silver collar" with a back like a boat and a back like a desk.

The word "Silver Collar" was called "Yuanbao" in Yuan Dynasty. From the Yuan Dynasty to the Yuan Dynasty, Pinghuai Treasury (then the national treasury) cast silver into an "ingot". Anything that emphasizes 50 yuan is called "Yuanbao", which means "the treasure of the Yuan Dynasty".