At Vanity Fair, Bruce Handy uncovers the long-lost inspiration for AMC's hit series Mad Men: "an obscure comic strip from the early 1960s" by legendary artist Frank Thorne called Those Madison Avenue Men! Just how obscure was it? Handy asserts that at the peak of its 43-week run in spring 1961, Those Madison Avenue Men! appeared in just eight newspapers.
If you've never heard of the strip, that's probably because it didn't exist. It's a pretty good gag, though (so good apparently that, despite clear signals to the contrary, the link is being passed around as fact).