On August 8, the reporter learned from the Department of Archaeology of Zhengzhou University that the archaeological team of Zhengzhou University recently published a paper in the international archaeological magazine Antiquities, confirming that the Guanzhuang site in Xingyang, Henan Province is the oldest coin-making workshop in the world. China began to use money very early in history, and it is an extremely important moment in the history of human economic development to start casting standardized metal money.

Zhao Hao, an associate professor in the Department of Archaeology of Zhengzhou University, said that China, Lydia and India may be the cradles of the revolutionary financial instrument of metal currency. At present, the earliest metal currency recognized by archaeologists in the world is the amber gold coin found in Lydia, the ancient city of Turkey. This archaeological discovery generally confirmed that amber gold coins appeared between 630 and 600 BC.

Archaeologists have been working in an area of Henan Province. They have been excavating the ruins of an ancient city called Guanzhuang, where they found the oldest mint in the world. The shovel-shaped copper coins found in the site were mass-produced 2600 years ago. Archaeologists found two shovel-shaped copper coins that looked like small gardening tools and dozens of clay molds used to make these tools when excavating the Guanzhuang site.

Scientists involved in the project believe that their findings provide a basis for the view that China was the first place to make coins, not Turkish or Greek. Guanzhuang site was built around 800 BC, surrounded by city walls and moats to protect its safety.

Casting is used to cast bronze wares, including ritual vessels, weapons and tools. According to archaeologists, the foundry was opened in 770 BC, and about 150 years later, workers there began to cast coins outside the south gate of the inner city. Archaeologists started working in the ruins of the ancient city from 20 1 1 and found workshops and hundreds of garbage pits. The casting of shovel coins began between 640 BC and 550 BC.

Perth Mint is also a mint with a long history, located in Hay Street in downtown Perth. Prior to this, Perth Mint was the oldest mint still in production in the world, and its history can be traced back to the gold rush era in the middle of19th century. Perth Mint is currently open to the public. Visitors can not only visit the coin making process, but also buy commemorative coins. Walking into the old melting pot of Perth Mint is like walking into the gold rush era of Western Australia in the last century. There are demonstrations of making gold bricks every day in the exhibition hall. Visitors can watch the melting and casting process of coins and gold coins and make their own coins or medals.