Hierarchical structures such as states dominate our understanding of history. But even as rulers asserted their power from the towers of palaces, real power often resided in the town squares below, within constantly shifting networks of people. The age of the world wide web has illuminated the power of networks but, Niall Ferguson argues, this is an age-old phenomenon. The event is on March 23, 2018 from 5:00 pm to 6:30 pm.