លុយថ្មរបស់យ៉ាប

មានកោះតូចមួយឈ្មោះ Yap នៅមហាសមុទ្រប៉ាស៊ីហ្វិក។ កោះ និង​អ្នក​ស្រុក​នេះ​ត្រូវ​បាន​គេ​ស្គាល់​យ៉ាង​ពេញ​និយម​ចំពោះ​វត្ថុ​បុរាណ​មួយ​ប្រភេទ​គឺ​ថ្ម​ប្រាក់។

The Pacific Island of Yap, a place known for its curious artifacts that have puzzled archaeologists for centuries. One such artifact is the rai stone – a unique form of currency that tells a fascinating story about the island’s history and culture.

The Ngariy Men's Meetinghouse known as a faluw on Yap island, Micronesia
Rai stones (Stone money) scattered around the Ngariy Men’s Meetinghouse known as a faluw on Yap island, Micronesia. Image Credit: Adobestock

The rai stone is not your typical currency. It’s a massive limestone disk, some even larger than a person. Just imagine the sheer weight and cumbersome nature of these stones.

Yet, these stones were used as currency by the Yapese people. They were exchanged as wedding gifts, used for political reasons, paid as ransoms, and even kept as inheritances.

ធនាគារប្រាក់ថ្មនៅកោះ Yap ប្រទេសមីក្រូនេស៊ី
Stone money bank in the island of Yap, Micronesia. Image Credit: iStock

But there was one major challenge with this form of currency – their size and fragility made it difficult for a new owner to physically move the stone closer to their home.

To overcome this challenge, the Yapese community developed an ingenious oral system. Every member of the community knew the names of stone owners and the details of any trades. This ensured transparency and controlled the flow of information.

House of the natives in the Yap Caroline islands
House of the natives in the Yap Caroline islands. Image Credit: iStock

Fast forward to the present day, where we find ourselves in the era of cryptocurrencies. And although rai stones and cryptocurrencies may seem worlds apart, there is a surprising resemblance between the two.

Enter the blockchain, an open ledger of cryptocurrency ownership that provides transparency and security. It’s similar to the Yapese oral tradition, where everyone knew who owned which stone.

Archaeologists were amazed to discover that this ancient “oral ledger” and today’s blockchain performed the same duty for their respective currencies – maintaining community control over information and security.

So, as we delve deeper into the mysteries of the rai stones and the blockchain, we begin to realize that even across vast distances of time and culture, certain principles of currency remain unchanged.