인동현은 선조 때 천생산에 성을 쌓고 인동도호부를 두었고, 약목현을 속현으로 두었다.
Indonghyeon built a fortress in the Cheonsaengsan Mountain during the reign of Seonjo, and built Indong Regional Military Command, and Yakmok-hyeon as a subordinate county.