The online historical map of the coexistence of Northern Song, Liao, Xixia and Dali in 1111 comes from the second volume of the Atlas of Chinese historical manuscripts, edited by Guo Moruo, the scale of the map is 1:21 million, the main marks in the map are as follows: capital Tokyo; capital Xijing; Lu and Dao level offices; government and state offices; and other residential areas.
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