Saint Boris, in baptism Michael, Prince of Bulgaria and Equal-to-the-Apostles, who brought his people to Christ.
Boris ruled Bulgaria in the ninth century and received baptism from Constantinople, taking the name Michael. He led his nobles and people into the Church, welcomed the disciples of Saints Cyril and Methodios, and fostered the Slavonic liturgy and letters.
Toward the end of his life he withdrew to a monastery, returning briefly to secure the Christian succession before ending his days as a monk in 907.
Feast day
On the New Calendar, Boris the Baptizer of Bulgaria is commemorated on May 2. Churches on the Old (Julian) Calendar keep the feast on May 15 of the civil calendar.
Who celebrates a name day
People with these names keep their name day on this feast:
Also commemorated on May 2

Athanasios of Alexandria
Hierarch, Αθανάσιος ο Μέγας
Archbishop of Alexandria, defender of the Nicene faith.
Name days: Athanasios, Thanassis, Thanos, Nasis, Athanasius
Hesperos and Zoe with their sons Kyriakos and Theodoulos
Martyr, Έσπερος, Ζωή, Κυριάκος και Θεόδουλος
Holy Martyrs Hesperos, Zoe and their children Kyriakos and Theodoulos, a Christian slave family martyred at Attalia.
Name days: Hesperos, Esperos, Theodoulos, Theodulus, Zoe, Zoi, Zoey
Matrona of Moscow
Holy Woman, Ματρώνα η Μοσχοβίτισσα
Blessed Matrona of Moscow, the blind ascetic and counselor of twentieth-century Russia.
Name days: Matrona
Basil the Blessed of Moscow
Venerable, Βασίλειος ο διά Χριστόν Σαλός
Blessed Basil, Fool-for-Christ of Moscow, who walked barefoot through the city and rebuked even the Tsar.
Jordan the Wonderworker
Venerable, Ιορδάνης ο Θαυματουργός
Venerable Jordan the Wonderworker, an ascetic remembered in the Greek synaxarion.