The Micronesian island of Yap is known for its stone money, known as Rai or Fei. They use large doughnut-shaped, carved disks of calcite, some as large as 13 ft in diameter. The rai is still used today for social transactions, such as marriage, inheritance, & political deals. – WTF Fun Facts
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disney attraction that can help pass kidney stones
Disney attraction that can help pass kidney stones – WTF fun fact
