St. Dominic de Guzman, the founder of the Order of Preachers commonly known as the Dominicans, was born in 1171 at Calaruega, Spain to a pious family of five. His mother, Jane of Aza and one of his brothers who later became a Dominican,
Mannes were beatified by the Church. From childhood, onwards Dominic excelled in all the virtues. After his university studies he was ordained a priest and became a Canon at the Cathedral of Osma. At that time, the Western Europe was under the grasp of Albigensian heresy. Having moved by compassion Dominic decided to begin an Order whose members would go around to preach the Word fearlessly for the salvation of souls. His Order was approved by the Holy See in 1216 and his Order became the first missionary Order in the Catholic Church. He replaced customary manual work of the religious with study thus always preparing themselves to preach the Good news in season and out of season. He himself went around the whole Western Europe and converted heretics in tens of thousands. It is said that he either spoke with God or about God. Fie spent his night in prayer and day preaching the Gospel. The devotion of Rosary is attributed to Dominic. Blessed Alan of Rock says that Mother Mary appeared to Dominic and giving him the Rosary, asked him to pray
and preach it and as a greatest means for the salvation of souls. Since then the Dominicans spread the devotion of the Most Holy Rosary all over the world. During his life time Dominic performed many miracles including raising the dead. He died in 1221 at Bologna and canonized a saint in 1234. He is the patron saint of astronomers. His feast day is August 8.