To what extent did the development and types of agricultural structures, the appearance of farms and the farmers themselves, be it a Russian peasant or an American farmer, affect the social development of both countries at turning points in their national history? How, in the light of the latest scientific data, does the problem of two ways of developing capitalism in agriculture seem to apply to these countries? The book describes the results of the latest methods of studying the agrarian history of both countries using computer processing. For historians, economists, teachers, students and scientists.