G+_bil Jeschke Posted February 27, 2017 Share Posted February 27, 2017 The first smart ring. Originally shared by Andrew Ledford 300-year-old Chinese abacus ring was used during the Qing Dynasty to help traders. Was this the first smart ring? https://andrewledford.tumblr.com/post/157707103134/exeunt-pursued-by-a-bear-a-mini-a-day Link to comment Share on other sites More sharing options...
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