The Geum River Basin contained the chiefdoms of Mahan, and a former centres of the early kingdom of Baekje such as Ungjin (AD 475-525) and Sabi (AD 525-660) are located along the Baengma portion of the river.
Under attack from Goguryeo, the capital moved south to Ungjin (present-day Gongju) and later further south to Sabi (present-day Buyeo).