St. Cyril (died 444) was bishop of Alexandria. A Doctor of the Church, he played a leading role in the controversies over the correct understanding of the person of Jesus Christ. Nothing certain is known concerning Cyril's early years except that he...

827?-869 Greek librarian and missionary, also known as Constantine the Philosopher, who invented Cyrillic script. The youngest child of a Greek father and a Slavic mother, Cyril studied science, music, geography, and languages at the royal school of...

Saint Cyril (Greek: Κύριλλος, Church Slavonic: Кирилъ) (827 - February 14, 869) was a Byzantine Greek[1] monk, scholar, theologian, and linguist. He is best known today for his work in Christianising the Slavs and, with his brother Saint...

Cyril and Methoudioius had a profound influence on the world by creating their alphabet. These Thesalonian brothers renounced thier family wealth, choosing a spitiritual and intellectual existance. The invention of the alphabet was to better enable them to work in several languages, as they performed their missionary work.