The Preslav Literary School was a significant cultural and educational institution in the First Bulgarian Empire during the 9th and 10th centuries. Established in the city of Preslav, it played a crucial role in the development of the Old Bulgarian language and literature. The school was instrumental in promoting the use of the Cyrillic alphabet, which facilitated the spread of literacy and religious texts among the Slavic peoples. The Preslav Literary School was closely associated with the reign of Tsar Simeon I, who supported the flourishing of arts and education. Scholars and writers at the school produced important literary works, including translations of religious texts and original compositions, contributing to the rich cultural heritage of Bulgaria and the broader Slavic world.