The episcopacy of Vanand was one of the ancient 12/13 dioceses of Armenia, which were confirmed by St. Gregory the Illuminator at the beginning of the 4th century. Some time later, with the second diocesan branch of St. Gregory the Illuminator, it became the 15th among the 30 (36) major dioceses of Armenia, occupying a central place. The episcopacy of Vanand played a decisive role in the national church affairs of the country in the early Middle Ages.

Keywordsepiscopacy diocese Vanand ancient main central place Middle Ages national church Catholicos.

The census is an important source of accurate information about the population of a state. The first All-Union census in the USSR was held in 1926. This census differed from both previous and subsequent censuses in the principles used to determine the national composition of the population guided solely by the principle of self-determination. As a result, 191 nationalities were registered throughout the USSR. However, difficulties have also arisen in registering some ethnic groups.

KeywordsAll-Union census main nationalities determination of ethnic identity the Persians the Karapapakhs the Turks the Azerbaijani Central Statistical Office Agbaba Zangezur.

The outstanding Soviet statesman, party and military figure, publicist, and literary scholar Alexander Astvatsaturovich (Fyodorovich) Myasnikyan (pseudonym – Al. Martuni, 1886-1925) is one of the most prominent figures in the modern history of the Armenian people. His life and multifaceted activities were closely connected with the struggle for freedom and the national revival of the Armenian people. The Armenian-Russian environment of Nakhichevan-on-Don (now part of the Rostov region), education in parish and diocesan schools (seminaries), and later at the Moscow Lazarev Institute contributed to the formation of Myasnikyan’s patriotic and national worldview.

KeywordsAlexander Myasnikyan Nakhichevan-on-Don Moscow Lazarev Institute Mikael Nalbandian Western Front Commander-in-Chief Chairman of the Central Executive Committee Chairman of the Council of People’s Commissars of the Soviet Armenia