- Fundación Carlos Slim, Wikimedia
- 72 hour(s):minute(s):second(s)
- Mexico (Mexico City)
The longest edit-a-thon lasted for 72 hours and was organized by Fundación Carlos Slim (Mexico) and Wikimedia, and took place at Museo Soumaya, in Mexico City, Mexico, from 9 to 12 June 2016.
102 people participated in the edit-a-thon. 264 articles were created and 388 in total were edited. All related to Mexican art.