The Dartmouth Summer Research Project on Artificial Intelligence in 1956 is widely regarded as the birth of AI as a research discipline. The event brought together leading thinkers in AI, computer science, and information theory to discuss future paths of investigation. A group photo from the event has long puzzled researchers, as one person remained unidentified. Recent investigations have revealed that the unknown person in the photo is Peter Milner, a neuropsychologist whose work contributed to the early development of artificial neural networks. The photo not only captures a moment in time for AI, but also offers insight into how the field would evolve.
https://spectrum.ieee.org/dartmouth-ai-workshop