Remember The Eugene Dietzgen Company? If you are under 40, you likely do not. Dietzgen was one of the world’s largest makers of slide rules. But when was the last time you saw a slide rule? According to the Internet, the Dietzgen company is still around, but I suspect that it is a shadow of its former self.

And what about Howard Johnson’s ice cream and restaurants? Back in the 1960s, HoJo, as it was referred to, was the premium ice cream chain. Today, there are a handful left, but what was at one time an industry leader has shrunk into near oblivion.