Part of the fun of going to a story ballet is decoding the tale that is being mimed-out on stage. For parts of it, you know the story already or the pantomime is clear as day. For other more subtle moments, you might catch a new detail that you never noticed before. That is part of the magic of these classic stories that are handed down and shared generation after generation. Boston Ballet performs Marius Petipa’s The Sleeping Beauty. This version of The Sleeping Beauty was first performed by the Imperial Ballet in 1890 at the Mariinsky Theatre in St. Petersburg Russia. Seeing it performed as it was performed then (with slightly more improved pointe shoe technology, newer costumes and sets, and slight tweaks to the movement and staging), is like walking into history and a storybook in one.