Since its premiere in 2005, Grey’s Anatomy has been one of the most successful series on TV, and Grey’s fans will be the first to say that A LOT of absolutely crazy things have happened on the show in the years since. Only the biggest Grey’s Anatomy fan will be able to remember not only the show’s biggest events but its biggest twists and turns, so if you have watched enough Grey’s Anatomy over the past 15 seasons to almost be a certified doctor yourself, find out how much you really remember about the show by matching the event or storyline to what season it happened in! Time to put on your scrubs and get to work: