In 1978, paleontologists in East Africa discovered the earliest evidence of our divergence from the apes: three pre-human footprints, striding away from a volcano, were preserved in the petrified surface of a mudpan over three million years ago. Out of Africa, the world's most ancient and stable landmass, Homo sapiens dispersed across the globe. And yet the continent that gave birth to human history has long been woefully misunderstood and mistreated...