Memoirs of the historian, academician of the Russian Academy of Sciences, scientific director of the Institute of General History of the Russian Academy of Sciences Alexander Oganovich Chubaryan cover a significant time horizon - from the 30s. XX century. to the beginning of the third decade of the century XXI. Most of them are devoted to the main activities of the scientist and public figure - scientific diplomacy. Real science is international, and the recognized scientist-historian A.O. Chubaryan (like many of his colleagues at the Academy of Sciences) since the beginning of the 60s. XX century. widely and successfully used the techniques and methods of diplomacy in scientific contacts with scientists from the countries of the West and the East, trying to help overcome international confrontation.