单词kievan
网络: 基辅
Some people believe that in 862 this lake was mentioned by Rurik, the founder of the Rurik dynasty which ruled Kievan Rus.
有些人相信在862年，这个湖被留里克提及，他是统治着基辅罗斯的留里克王朝的创建者。
It aimed at maintaining the peace of Kievan Rus when its social economy and political structure were in a stable situation;
当社会经济、政治结构相对稳定，基辅罗斯外交旨在维护和平；