Emma Watson is another year older and wiser! The star celebrates her 31st birthday today, April 15, and we couldn’t let the day go by without commemorating the major milestone. Seeing as how we’ve watched the actress and activist grow into the woman she is today – thanks to her many years portraying Hermione Granger in the Harry Potter franchise, of course – we figured it’d be a great idea to take a look back at her remarkable transformation.