In March 2015, the Hatnote team (volunteer developers Stephen LaPorte and Mahmoud Hashemi) announced that the “Humble Hashtag is now on Wikipedia”, launching the first hashtag search tool for Wikipedia edits.
Every Wikipedia edit is accompanied by an edit summary, a short description of the changes made in each revision. If you include a hashtag in the edit summary, you will see your edit appear on the search page alongside other similar edits.
One year later, hashtags are providing vital insight into Wikipedia editing events in over a dozen languages. This post explores some of the success stories made possible by dedicated volunteers using hashtags on Wikipedia.