Archaeologists in Britain say they have found the earliest known evidence of deliberate fire-making, dating to around 400,000 years ago. The findings published in the journal Nature predate previous evidence by about 350,000 years. The team identified heated sediments, fire-shattered flint tools and rare fragments of iron pyrite brought to the site to strike sparks. Researchers say the discovery sheds new light on early Neanderthal behavior and suggests fire making played a major role in human evolution, from diet and survival to social life and cognitive development.