Wikipedia hosts a vast trove of information, but the admitted gender gap amongst the site's volunteer editors has left many female historical figures out of the digital history books. The Royal Society wants to rectify this: BBC reports that an "edit-a-thon" will be held in London (and online) on October 19th, to celebrate the contributions women have made to science by ensuring that their Wikipedia profiles are comprehensive — or exist at all. Profiles for a few historical figures have been singled out for updates, but the project's ultimate goal is to improve visibility across the gender divide, and prevent this sort of event from being necessary in the first place.