Strictly speaking, of course, there was no "American mind" during this period, since Americans were then, as they are now, of many minds. Child and adult, man and woman, native and foreign born, Northerner and Southerner, slave and citizen-everyone who lived in America lived in a world of ideas and values shaped in part by a particular history and particular circumstances. However, as Tocqueville observed after visiting America in the 1830s, the citizens of any vigorous society are usually "rallied and held together by certain predominant ideas." Except for the chapter on the slave-holding South, we will be concerned here with the dominant ideas and values most Americans shared and identified with their new nation during the years from 1815 to 1860."