Most people can fit everything they need for a FaceTime or Google Duo call in their pockets these days. We've come a very long way since the first ever commercial video calling service.  Fifty years ago today, the first public Picturephone Mod II call took place between Pittsburgh mayor Peter Flaherty and Alcoa CEO John Harper. It was the first videophone you could install at your home or office, and 38 of them were in use across eight Pittsburgh companies on July 1st, 1970, when...

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