LONDON (AP) — Scientists in Britain say ancient humans may have learned to make fire far earlier than previously believed, after uncovering evidence that deliberate fire-setting took place in what is now eastern England around 400,000 years ago.The findings, described in the journal Nature, push back the earliest known date for controlled fire-making by roughly 350,000 years. Until now, the oldest confirmed evidence had come from Neanderthal sites in what is now northern France dating to about 50,000 years ago.The discovery was made at Barnham, a Paleolithic site in Suffolk that has been excavated for decades. A team led by the British Museum identified a patch of baked clay, flint hand axes fractured by intense heat and two fragments of iron pyrite, a mineral that produces sparks when struck against flint.AdvertisementAdvertisementAdvertisementAdvertisementResearchers spent four years analyzing to rule out natural wildfires. Geochemical tests showed temperatures had exceeded 700 degrees Celsius (1,292 Fahrenheit), with evidence of repeated burning in the same location.That pattern, they say, is consistent with a constructed hearth rather than a lightning strike.Rob Davis, a Paleolithic archaeologist at the British Museum, said the combination of high temperatures, controlled burning and pyrite fragments shows “how they were actually making the fire and the fact they were making it.”Iron pyrite does not occur naturally at Barnham. Its presence suggests the people who lived there deliberately collected it because they understood its properties and co …
