Archaeological excavations in the Ji'an area have unearthed several
Yemaek sites along the
Amnok River and its tributary the
Hunjiang, which belong to the regional
Neolithic and
Bronze ages. After the fall of
Wiman Joseon to the
Han dynasty in 108
BCE, Ji'an was part of
Goguryeo County under the administration of
Xuantu Commandery. In 3
CE, the second ruler of
Goguryeo,
King Yuri, moved the state's capital to
Gungnae (modern Ji'an) and established the mountain fortress
Hwando nearby to defend it. Hwando was sacked by
Wei State in 244 CE during the
Goguryeo–Wei War. In 342 CE, Hwando was destroyed and thousands of people captured by the
Murong Xianbei, after which Goguryeo focussed on expanding south and east. In 427 CE, the eleventh ruler of Goguryeo,
King Jangsu, moved the capital to
Pyongyang, which saw Gungnae relegated to subsidiary capital status. The
Capital Cities and Tombs of the Ancient Koguryo Kingdom, located in Ji'an and
Huanren Manchu Autonomous County, Liaoning, have been listed as part of a UNESCO
World Heritage Site. Ji'an is also dubbed as a "Little
Jiangnan" of Jilin due to its scenery. ==Geography and climate==