Three Holy Hierarchs died in 379.
Three Holy Hierarchs was born in 330.
Greek Letters Day is the celebration of the Three Hierarchs of the Orthodox Church:St. Basil the Great, St. Gregory the Theologian, and St. John Chrysostom. The Orthodox Church considers the Three Hierarchs the most important Teachers and Fathers for the development and growth of the church. The Three Hierarchs have been credited with working diligently to see the development of Greek literature and education. Greek Letter Day celebrates the use and promotion of the Greek language abroad.
They are the Three Graet Hierarchs :Basil the Grate known as Basil of Caesarea,Gregory the Theologian known also as Gregory of Nazianzus ,and John the Chrysostom.Patrons also of Letters and pupils.
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It symbolizes the holy trinity, which has three parts. Father, Son, Holy Spirit.
The Holy Spirit is described as one of the three persons of God, after Father, Son and and then the Holy Spirit.
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Mount Fuji, Mount Tate and Mount Haku
He did not die after drinking from the Holy Grail because his son made a "wise choice" when he picked it.
Robert of Holy Island died on 1283-06-07.
Holy Child of La Guardia died in 1491.
.Roman Catholic AnswerThe three most Holy Days of the year are usually considered Easter, Pentecost, and Christmas.