Is Unity Possible in Diversity? What is the future of the nation-state amid cultural plurality and a pervasive identity crisis? What is the key to tolerance and where are its boundaries? These and other acute issues of our time are heard when discussing the problems of multiculturalism. The conceptual amorphousness and ambiguity of its reading only intensify the intensity of public discussions, making multiculturalism a convenient target for various semantic speculations. This work is an attempt to move away from a one-sided view of the problems of multiculturalism and consider it as a comprehensive historical, cultural, social and political phenomenon in the context of the development of the American nation, as well as the search for possible models of its consolidation. The book is addressed to both Americanists, students of humanitarian specialties, and everyone who is interested in American history or problems of modern social development.