The Prologue to Earthopolis: A Biography of Our Urban Planet discusses the importance of camps and villages to human migration and habitation of Earth and to the agricultural revolution. It differentiates the kinds of larger-scale actions we could take as residents of smaller habitats from those we could take in cities. It notes that while those smaller settlements existed long before cities and continued to exist beyond the influence of acts enabled by cities for many millennia, virtually all camps and villages have been incorporated into the Urban Planet’s realms of action, habitat, impact, and consequence today.