Changes

==Other==

*Aghayan's works mainly refer to the revolutionary movements in Transcaucasia and Armenia, Armenian-Russian relations, establishment of Soviet Armenia.

*The monograph of "The History of the Armenian People's Liberation Struggle"(Հայ ժողովրդի ազատագրական պայքարի պատմությունից) (1976) provides the history of the national liberation movement of the Armenian people from the 70s to the 1920s in the 19th century, separate chapters are dedicated to the history of the Armenian question after the Russian-Turkish war 1877-1878 , the rise of the national liberation struggle after the Berlin congress (1878); Armenian Genocide in 1915, to the events of Cilicia 1919-1921 , the activities of people's hero Andranik etc.