Mormons: An Address Delivered to the Historical Society of Pennsylvania by Thomas L. Cain is a study of the history and beliefs of the religious movement of the last decades of the 19th century. It examines the origins and basic principles of Mormonism, its influence on American society and culture at that time. The author analyzes in detail the formation and spread of the Mormon church, revealing the key events and figures that influenced the formation of this religious community. The book is an important source for culturologists, historians, and anyone interested in religion and sociocultural processes of the 19th century in the United States.