edit-a-thon

thumb|The end of the 100-hour-long edit-a-thon (recognized by the Guinness World Records) that took place in [[Warsaw in September 2023]] thumb|An editathon for university students in Germany An edit-a-thon (sometimes written editathon) is an event where some editors of online communities such as Wikipedia, OpenStreetMap (also known as a "mapathon"), and LocalWiki edit and improve a specific topic or type of content. The events typically include basic editing training for new editors and may be combined with a more general social meetup. The word is a portmanteau of "edit" and "marathon". An edit-a-thon can either be "in-person" or online or a blended version of both. If it is not in-person, it is usually called a "virtual edit-a-thon" or "online edit-a-thon".

== Locations (in-person events) == Wikipedia edit-a-thons have taken place at Wikimedia chapter headquarters; accredited educational institutions, including Sonoma State University, Arizona State University, Middlebury College, and the University of Victoria; scientific research institutions such as the Salk Institute for Biological Sciences; and cultural institutions, such as museums or archives.