Our national myths often exaggerate the role of individual heroes and understate the importance of collective effort. Historian David Hackett Fischer’s gripping account of opening night in the American Revolution, for example, reminds us that Paul Revere’s alarum was successful only because of networks of civic engagement in the Middlesex villages. Towns without well-organized local militia, no matter how patriotic their inhabitants, were AWOL from Lexington and Concord.

