Archaeologists working at Qusem Cave in Israel have uncovered a 300,000 year-old hearth. It's the earliest evidence of repeated fire building over a continuous period by humans.
Anthropologists estimate that humans first discovered fire about a million years ago. What we don't know, however, is when our ancestors first starting using it on a regular basis, for example, to cook meals. But the discovery of a 300,000 year-old hearth at an archaeological site near Tel Aviv sets the clock to at least that far back in time.