Introduction to the ancient county of Xi'an: Liaoyuan was originally called Xi'an County. It was established in the 28th year of Guangxu's reign in the Qing Dynasty. Its name means peace. The people of Liaoyuan used their hard-working hands to cultivate wasteland, dredge rivers and build embankments, and recuperate. However, what really made Liaoyuan famous was the discovery of high-quality coal here.