Stay in Moscow of the delegation of the People's Assembly of Bulgaria: meeting of the delegation at the Vnukovo airport (among the greeters - Deputy Chairman of the Presidium of the Armed Forces of the Estonian SSR A.A.Murisep), reception at the Supreme Soviet of the USSR, visiting V.I.Lenin's office in the Kremlin, laying on wreaths to the Lenin Mausoleum and the tomb of the Unknown Soldier. Stay of the Bulgarian delegation in Minsk: visiting the Supreme Soviet of Belarus, the house-museum, where the 1st Congress of the RSDLP was held, the Minsk Tractor Plant. Stay of the delegation in Leningrad: visiting Smolny, the cruiser "Aurora", Piskarevsky cemetery, knitwear and hosiery factory "Red Banner", the Hermitage. Stay of the delegation in Yerevan: acquaintance with the leadership of the republic, the city, a visit to the museum of ancient manuscripts, Lake Sevan, a boat trip, a visit to the Yerevan electric lamp factory. Return of the delegation to Moscow, visiting the Exhibition of Achievements of the National Economy, the ballet "Don Quixote". Members of the delegation are present at the May Day celebrations on Red Square. Receiving the delegation in the Kremlin Leonid Brezhnev.