Saint Cyril

Saint Cyril (aka Kyrillos and Constantine the Philosopher, d. 867 CE) was a Byzantine linguist, teacher, scholar and missionary who famously preached Christianity to the Slavs in Moravia with his brother Methodius during the 9th century CE. He created the Glagolitic alphabet, the forerunner to the Cyrillic alphabet that bears his name, and did much to spread the religion, art and culture of the Byzantine empire into central Europe.