Leap Day, the Longest Year and Julius Caesar’s Year of Confusion

Today is February 29th – which apparently is a quite popular day to get married. Some couples think it’s quirky or romantic. And let’s be honest, a handful of people might be hoping they only have to celebrate an anniversary once every four years. Not that I identify with this idea at all, of course.

But aside from creative wedding dates or the various online support groups devoted to people born on leap day – today might also make you curious about the history of this correction of the moder...