The calculation tool used in ancient China is called the abacus.
The abacus is a simple calculation tool invented by the working people of ancient China. China is the hometown of the abacus. Today, when computers are widely used, the ancient abacus has not been abandoned. Instead, it is in the ascendant in many countries because of its flexibility, accuracy and other advantages. Therefore, people often compare the invention of the abacus with the four great inventions of ancient China.
Due to the convenience and speed of abacus calculations, it has been a commonly used calculation tool by the working people of ancient China for thousands of years. Even the most advanced electronic calculators in modern times cannot completely replace the role of abacus. UNESCO has just approved it in Baku, the capital of Azerbaijan, and abacus has officially become the intangible cultural heritage of mankind.
Extended information
The social background of the abacus:
Since ancient times, the abacus has been used to calculate accounts. For this reason, the abacus has been regarded as a symbol of wealth. Mascots are respected by people. Among the people, you often hear metaphors such as "golden abacus" and "iron abacus", which mostly describe the shrewdness of "calculating in but not out".
In ancient times, children hung the hundred-eye sieve around their necks to ward off evil, and it also had an abacus. In addition, the abacus also serves as a dowry to remind the bride to learn to be "careful in budgeting". It appears in the "six certificates" of the dowry to bless the newlyweds with a prosperous and peaceful married life and great wealth.
The dowry abacus has the meaning of attracting wealth. It can be placed in the new house or study room. If it is a small pendant, it can also be carried with you to help you make money. The best Feng Shui way to place it in the room is to hang it on the door, window or bookshelf. This can help your marriage life be rich and peaceful, and it can also help you transform evil spirits into villains.
Baidu Encyclopedia-Abacus