The Lý Dynasty was a ruling dynasty in Vietnam that lasted from 1009 to 1225. Founded by Lý Thái Tổ, it is known for establishing the capital in Thăng Long (modern-day Hanoi) and promoting Buddhism as a state religion. The dynasty is recognized for its cultural and economic advancements, including the development of literature and the arts. During the Lý Dynasty, Vietnam experienced significant territorial expansion and consolidation. The dynasty also implemented reforms in governance and agriculture, which improved the lives of the people. The Lý Dynasty is often regarded as a golden age in Vietnamese history, laying the foundation for future dynasties.