This book gives an interdisciplinary approaches to legal phenomena . The study attempts to outline necessity of multidisciplinary tendencies as indirect consequences of Western analytical thinking, and  sketches the structure of multidisciplinary legal inquiry, and drafts a special cultural-historical model (on the basis of the ideas of Maine, Weber, Spengler, Toynbee, Huizinga and Huntington), which is also able to contribute to forming of a new  interpretation of the Roman law. In the second part of the study the book approaches some of the important phenomena of the state theory, and finally investigates one of the greatest dangers that threaten both the sovereignty of the states and the national legal systems and their values.