Another male teacher, named Liao Zhengyi, came later.

后来又调来一名男老师，叫廖增益。

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But in the later period of Liao Dynasty, its legal systems retrogressed a lot and many achievements obtained in the beginning were lost.

但是到了后期，其法制却出现了大的倒退，遭到严重破坏，前期取得的成果丧失殆尽。

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In 936, the Later jin Dynasty of northern China ceded a large part of its northern frontier, including modern Beijing, to the Khitan Liao Dynasty.

公元936年，位于中国北部的金放弃了北方的大片土地(包括现在的北京)于辽。

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In 936, the Later jin Dynasty of northern China ceded a large part of its northern frontier, including modern Beijing, to the Khitan Liao Dynasty.

公元936年，位于中国北部的金放弃了北方的大片土地(包括现在的北京)于辽。

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