It’s December, which means it’s time to recap what’s happened over the past 12 months. We’ve done it. Twitter’s done it. Google’s done it. And for the first time, Wikipedia is joining that tradition with a video that highlights some of the most memorable events of the year. One twist: Wikipedia’s managed it in a uniquely encyclopedic way, putting together a video using only text, photos, and videos that were uploaded by its contributors. It’s a powerful example not just of the year’s news stories, but also of Wikipedia’s reach as an information platform.