Richard Cadbury (yes, that Cadbury), chocolate-maker, philanthropist, and (I'm going to go ahead and assume) hopeless romantic, is credited with inventing and marketing the first heart-shaped box ...

and you can cross the line if you make a package look much bigger than it really is based on what the contents actually are," he says. Has inflation come for the heart-shaped chocolate box?

The matter of the heart shape, and how it came to represent love, is complicated, contested, and quite long. Thankfully, the story of the heart-shaped chocolate box is much more straightforward.