The Eastern Jin Dynasty (317-420 AD) was a Chinese dynasty that followed the Western Jin Dynasty. It was established after the fall of the Western Jin due to internal strife and invasions by nomadic tribes. The capital was moved to Nanjing, and the dynasty is known for its cultural achievements, including advancements in literature and art. During the Eastern Jin, the political landscape was marked by fragmentation, with various regional powers emerging. Despite these challenges, the dynasty fostered a flourishing of intellectual thought, particularly in the fields of philosophy and poetry, contributing to the rich tapestry of Chinese history.