Ancient travelling expenses are travelling expenses. Ancient coins are metal coins with a hole in the middle, and 1000 coins are often hung in strings with ropes. When people go out to visit relatives on business, they can only bring a heavy string of copper coins around their waist, which is convenient and safe to carry. Therefore, the ancients called this kind of "food" and "wrapping" as "travelling expenses".
Over time, this method spread, and people's travel expenses were expressed by "travel expenses". Now it seems that this statement is metonymic rhetoric, which is also the embodiment of the wisdom of the ancients.
Boarding is another way of saying that Panchuan means travelling expenses and hot money, so it is also called Chuandu. As for the origin of this word, both Pan and Chuan have the meaning of wandering, and going out to wander will cost more than staying at home, so Pan (Luochuan) has become synonymous with hot money. This word came into being later, and its meaning of travel expenses is derived from the meaning of expenses.
Source of travel expenses:
The ancients called the fare a plate of rice because money was wrapped around the waist at that time. In ancient times, only a few people could afford gold and silver, and most ordinary people could only trade with copper coins. The round square holes of copper coins can be strung together with ropes, which is convenient for carrying and counting. The ancients called copper coins strung together with ropes "plates".
When the ancients traveled far away, in order to avoid being stolen or lost, they would wrap their travel expenses around their waists. Over time, people are used to calling tolls "tolls". Rolling money is a string of copper coins, which can also be rolled up with cloth, which improves security and portability to a certain extent.
However, the use process is still not as convenient as paper money, nor is it as safe as mobile payment, and there are losses. In the Northern Song Dynasty, the ancients invented the paper money "Jiaozi", that is, the silver ticket, but the paper money was abolished in the late Ming and early Qing dynasties. Until the end of the Qing Dynasty, due to frequent natural and man-made disasters, the Qing government was short of money, so it thought of printing money.