Without fire, we die. In this raw episode of survival blacksmithing, we forge a flint striker from raw steel - no power tools ...

Fragments of iron pyrite, a rock that can be used with flint to make sparks, were found by a 400,000-year-old hearth in eastern Britain. (Jordan Mansfield | Courtesy Pathways to Ancient Britain ...

Four hundred thousand years ago, someone took up a piece of pyrite, struck it against a stone, and started a fire. Archaeologists working on a site in Suffolk have found the pyrite and the scalded ...