We've officially entered One Direction's hiatus, and fans the world over are heartbroken — and a bit bored. Niall Horan, Harry Styles, Louis Tomlinson, and Liam Payne have all reassured fans that the break is just temporary and they'll be back in a year or two, refreshed and ready to continue as One Direction, but how much do you know about the first five years of their career? As a bit of a diehard fan, I took it upon myself to try to come up with what I think are the most iconic moments in One Direction's history. The evolution of these boys, if you will. Scroll through to see them all, and then powwow with me while we listen to "History" on repeat and anxiously wait for our boys to come back to us.