structural:reformatting
Baekje

Baekje was founded as a member of the Mahan confederacy. Two sons of the founder of Goguryeo are recorded to have fled a succession conflict, to establish Baekje around the present Seoul area. Baekje absorbed or conquered other Mahan chiefdoms and, at its peak in the 4th century, controlled most of the western Korean Peninsula. Buddhism was introduced to Baekje in 384 from Goguryeo, which Baekje welcomed.

Baekje was a great maritime power; its nautical skill, which made it the Phoenicia of East Asia, was instrumental in the dissemination of Buddhism throughout East Asia and continental culture to Japan. Baekje played a fundamental role in transmitting cultural and material developments to ancient Japan, including Chinese written characters, Chinese and Korean literature, technologies such as ferrous metallurgy and ceramics, architectural styles, sericulture and Buddhism.

Baekje exerted its political influence on Tamna, a kingdom that ruled Jejudo. Baekje maintained a close relationship with and extracted tribute from Tamna. Baekje's religious and artistic culture influenced Goguryeo and Silla. Baekje was once a great military power on the Korean Peninsula, especially during the time of Geunchogo, but was critically defeated by Gwanggaeto and declined.

In the late 5th century, under attack from Goguryeo, the capital of Baekje was moved south to Ungjin (present-day Gongju) and later further south to Sabi (present-day Buyeo). Baekje was conquered by Silla-Tang alliance in 660, submitting the Unified Silla.