Their late dad, Robert, rose to fame as the attorney who successfully defended O.J. Simpson during his mid-’90s murder trial. Caitlyn Jenner, their stepdad, is a gold-medal-winning Olympic decathlete. How the Kardashian sisters – Kim, Khloé and Kourtney – are themselves so famous, though, no one quite knows. One thing’s for sure, however: today they’re among the most photographed women in the world. But it wasn’t always this way; take these 20 shots, for example, in which the ubiquitous Kardashian sisters, their siblings and parents are barely recognizable.