100,000 years ago, at least six species of human inhabited the earth. Today there is just one. Us. Homo Sapiens. How did our species succeed in the battle for dominance? Why did our foraging ancestors come together to create cities and kingdoms? How did we come to believe in gods, nations, and human rights; to trust money, books, and laws; and to be enslaved by bureaucracy, timetables, and consumerism? Dr. Yuval Noah Harari spans the whole of human history, from the very first humans to walk the earth to the radical -- and sometimes devastating -- breakthroughs of the Cognitive, Agricultural, and Scientific Revolutions. He explores how the currents of history have shaped our human societies, the animals and plants around us, and even our personalities. Have we become happier as history has unfolded? Can we ever free our behaviour from the heritage of our ancestors? Dr. Yuval Noah Harari has a PhD in History from the University of Oxford and now lectures at the Department of History, the Hebrew University of Jerusalem.