Boris I accepted holy baptism and the name of his godfather – Emperor Michael in 864, and then introduced the Christian faith everywhere in the Bulgarian lands. His experience as a statesman convinced him that the conversion of the Bulgarian people and the establishment of a Bulgarian church could not only spiritually unite Slavs and proto-Bulgarians, but also turn Bulgaria into an even more powerful and unavoidable factor that the other countries cannot help but take into account .
With exceptional statesmanship, he confirmed definitive Slavic worship in the Bulgarian church and its complete independence.
The church celebrates it on 2nd of May.
Boris, Boril, Borislav, Borko, Boryan, Bora, Borislava, Borka, Boryana, etc.