IT’S an idea that has been influential for more than 200 years: around the middle of the first millennium BC, humanity passed through a psychological watershed and became modern. This ‘Axial Age’ transformed an archaic world of divine rulers, slavery and human sacrifice into a more enlightened era that valued social justice, family values and the rule of law. The appeal of the general concept is such that some have claimed humanity is now experiencing a second Axial Age driven by rapid population growth and technological change. Yet according to the largest ever cross-cultural survey of historical and archaeological data, the first of these ages never happened — or at least unfolded differently from the originally proposed narrative…

This article was first published in Nature on 9 December 2019. To continue reading, click here.