Sapiens: A Brief History of Humankind is a book by Yuval Noah Harari, first published in Hebrew in Israel in 2011 based on a series of lectures Harari taught at The Hebrew University of Jerusalem, and in English in 2014. The book surveys the history of humankind from the evolution of archaic human species in the Stone Age up to the twenty-first century, focusing on Homo sapiens. The account is situated within a framework that intersects the natural sciences with the social sciences.