Abstract
A hitherto unknown document, Otto Neurath’s outline for an ‘Enzyklopädie des Weltkrieges’ presumably of the early 1920s, has been recovered and invites contextualisation. Why did the initiative for this encyclopedia develop? What was the contemporary background? What was done by others, maybe in a similar vein? We can speculate who the EWW was meant for, and learn from the introductory section that its intended audience was the general public. That Neurath should be involved in such an undertaking seems timely and appropriate, as he had experience with the topic, and the capacity and connections essential for carrying out such a long-term scheme