400,000 years ago, humans and Neanderthals discovered fire. This ignited a relationship between people and photons that changed the course of mankind—and continues to evolve to this day. Take a tour through the visual history of light.
Find a detailed timeline of light inventions throughout humanity here: theatlantic.com/video/index/560585/visual-history-light/
For more on the relationship between humans and light, check out Stephen Ong's "The Evolution of Light":