Old Bulgarian Literature refers to the body of written works produced in the First Bulgarian Empire, primarily during the 9th to 11th centuries. This literature emerged after the introduction of Christianity and the creation of the Cyrillic alphabet by the brothers Cyril and Methodius. It includes religious texts, translations of Greek works, and original compositions that reflect the cultural and spiritual life of the time. The most significant contributions to Old Bulgarian Literature are the Slavonic translations of the Bible and various liturgical texts. Notable works include the Psalter and the Gospel of Tsar Ivan Alexander. These texts played a crucial role in the development of the Bulgarian language and the preservation of Slavic culture.