Ancient Chinese people were known to use creative methods to send secret messages, especially during wars and political missions. One such method involved small wooden cylinders or rings joined in a circular form, which could be rotated and opened only with the correct combination. Inside, a hidden message was kept safely. This device worked much like an ancient cipher lock, making it difficult for enemies to decode or even find the message. Though some versions seen online may be modern recreat
0:24
Ancient Chinese people were known to use creative methods to send secret messages, especially during wars and political missions. One such method involved small wooden cylinders or rings joined in a circular form, which could be rotated and opened only with the correct combination. Inside, a hidden message was kept safely. This device worked much like an ancient cipher lock, making it difficult for enemies to decode or even find the message. Though some versions seen online may be modern recreat
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FacebookHelen Nguyen
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