The Lelang Commandery was a commandery of the Han dynasty established after it had conquered Wiman Joseon in 108 BC and lasted until Goguryeo conquered it in 313.[1] The Lelang Commandery extended the rule of the Four Commanderies of Han as far south as the Han River in present-day South Korea.[2][3] South Korean scholars have described its administrative areas as being limited to the Pyongan and Hwanghae regions, whose southern bounds lie roughly 75 miles north of the Han River.[4]
