Simeon I of Bulgaria, also known as Simeon the Great, was a prominent ruler of the First Bulgarian Empire from 893 to 927 AD. He is best known for expanding the empire's territory and influence, making it one of the most powerful states in Europe during his reign. Simeon promoted the spread of Christianity and the development of Bulgarian culture, particularly through the establishment of the Cyrillic alphabet. Under Simeon's leadership, Bulgaria experienced a cultural renaissance, with advancements in literature, art, and education. He sought to elevate Bulgaria's status among other European nations, often engaging in diplomatic relations with the Byzantine Empire and other neighboring states. His reign is considered a golden age in Bulgarian history.