Part One
The Cognitive Revolution

1. A human handprint made about 30,000 years ago, on the wall of the Chauvet-Pont-d’Arc Cave in southern France. Somebody tried to say, ‘I was here!’
{© ImageBank/Getty Images Israel.}

1. A human handprint made about 30,000 years ago, on the wall of the Chauvet-Pont-d’Arc Cave in southern France. Somebody tried to say, ‘I was here!’
{© ImageBank/Getty Images Israel.}