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@gesundheit40 no idea. I knew the Rubik's Cube debuted here at the world's fair. I'm going to have to see if I can hunt that down.
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@gesundheit40 I've got a line on the cube (blogs.metropulse.com/ask_dr_knox/2010/10/where-is-knoxvilles-ever-puzzl.html) when are you coming to visit?