Within the frameworks of his visit to the Russian Federation Bulgaria’s President Rumen Radev met Bulgarian and Russian cultural figures in Moscow on occasion of the forthcoming Day of Slavic Script- May 24. The presence of such holiday on the Bulgarian calendar is an indicator of the high civilization level of the Bulgarian people and the values they have developed and carried over the centuries, Bulgaria's head of state said. President Radev and the first lady of Bulgaria Desislava Radeva attended the Siegfried opera by Richard Wagner at Bolshoi Theatre, performed by the Sofia Opera and Ballet.