I found this article on the origin of cuff links. If you have another version of cuff links origin, do leave me a comment.
How did cuff links come to be?
They are believed to have first been used in the 17th century. The late English King (Charles II) made them popular with his style of dress. The shirts he fancied had lacy fronts and lacy cuffs. The coat cuff was held back to the sleeve with an ornamental button. Over the centuries styles evolved and the buttons came to resemble modern cuff links. Today, the links are as functional as they are ornamental. They do work to hold cuffs together.
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“Cast a World of Cuffs”