San Antonio College Library

Until just a few years ago, we knew surprisingly little about the 150,000 or so years of human existence before the advent of writing. Some of the most momentous events in our past--including our origins, our migrations across the globe, and our acquisition of language--were veiled in the uncertainty of "prehistory." That veil is being lifted at last by geneticists and other scientists. Mapping Human History is nothing less than an astonishing "history...