Glagolitic script alphabets, Cyril decided to invent a new script, Glagolitic, which he based on the local dialect of the Slavic tribes from the Byzantine theme of Thessalonica. After the deaths of Cyril and Methodius, the Glagolitic alphabet ceased to be used in Moravia, but their students continued to propagate it in the First Bulgarian Empire, where it was subsequently also displaced by the Cyrillic alphabet. The Glagolitic alphabet was preserved only by the clergy of Croatia to write Church Slavonic until the early 19th century. The name was not created until many centuries after the script's creation, and comes from the
Glagolitic script By the time of the devastating Italianization movements under Fascist Italy in the early 20th century, numerous independent events had already greatly reduced the area of the liturgical use of Glagolitic. The tradition that the alphabet was designed by Saint Cyril and Saint Methodius has not been universally accepted. A less common belief, contradicting allochthonic Slovene origin, was that the Glagolitic was created or used in the 4th century by St. Jerome (Latin: "Eusebius Sophronius Hieronymus"), hence the alphabet is sometimes named Hieronymian. It is also acrophonically called azbuki from the names of its first two letters in Bulgaria, on