Answer: W. Lloyd Warner, an anthropologist and sociologist, conducted a study of the social structure of a modern New England community, which he called Yankee City. The study was published in six volumes, and the first volume was titled “The Social Life of a Modern Community”. In this volume, Warner and his research team discovered six stratified social classes in Yankee City. These classes were:
Upper-upper class
Lower-upper class
Upper-middle class
Lower-middle class
Upper-lower class
Lower-lower class
Each of these classes could be further divided into nine social categories, ranging from upper-upper class to lower-lower class. The study was conducted over ten years by Dr. Warner and a research staff varying in number from four to fifteen, studying a well-integrated community with the techniques of the social anthropologist. The study is considered to be one of the most important works on social stratification in the United States.