- Who
- Wikimedia Polska Association
- What
- 100:00:00 hour(s):minute(s):second(s)
- Where
- Poland (Warsaw)
- When
The longest edit-a-thon is 100 hours, achieved by Wikimedia Polska Association (Poland) in Warsaw, Poland, from 26 to 30 September 2023.
This event was organised in celebration of the polish Wikipedia's 22nd year.
