AFTER more than 70 years of divided rule, China was reunited under the Sung dynasty when the last of the ten separate kingdoms was vanquished in A.D. 976. The founder of the new dynasty, Chao...
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AFTER more than 70 years of divided rule, China was reunited under the Sung dynasty when the last of the ten separate kingdoms was vanquished in A.D. 976. The founder of the new dynasty, Chao...