Accession of Hazaria possession allowed Bulgaria to control all main trade ways connecting Europe with Asia that brought to the Bulgar state considerable benefit and allowed to become the great power again.
The basis of activity of the state proclaimed a principle of social justice. Creation of conditions for providing a worthy standard of living of all segments of the population, social and economic and cultural progress of society, ecological safety and rational land use is provided.
At feudalism there were madrasahs, literature began to develop. In the period of feudalism the process of formation of a Bulgar nationality occurring on the basis of inclusion in structure the Bulgar of a number of Turkic, Finno-Ugric tribes came to the end.