Here's a theory: Pop art was invented in Scotland. Quite a wild hypothesis, it might be said. Pop art, so the standard story goes, first appeared in London in the mid-1950s, among a dynamic group ...

“It is at this juncture that Bill is often credited for having ‘invented’ the Pop Tart,” Post’s obituary reads. “To be accurate, however, Bill would say, ‘I assembled an amazing team ...