This book is dedicated to the history of the accession of Eastern Armenia to Russia. It tells about the historical prerequisites and conditions for joining, about the progressive significance of this event, which saved the Armenian people from the threat of physical extermination and provided them with the opportunity for economic and cultural development. The author paints the plight of the Armenian people under the NG of Shah Persia and local feudal lords with bright colors. He talks about the economic decline of Eastern Armenia on the eve of its accession to Russia, about the ruin of the peasants, about the immense cruelty of the Erivan rulers, about the struggle of the working population against social oppression. The author introduces the reader to the history of friendly relations between the Armenian and Russian peoples in the 17th-18th centuries, testifying to the desire of the Armenian people to rapprochement with Russia.