|Coin history - The Jin dynasty A.D. 1115-1234| The Ruzhen
people controlled the North of China after defeating the Liao
dynasty. The Jin emperor Tai Zong occupied the northern part of
China, and the Song had to move their capital from Kaifeng to
Hangzhou in the South in 1127. Coins minted during the Jin
period were of a very high quality: the calligraphy was
exquisite, and the casting was finely done. The Jin cast coins
with four reign titles: Huang Tong, Zheng Yuan, Da Ding and Tai
He. Only one Huang Tong is known to exist today. The Tai He
Zhong Bao were cast with a very special and particularly
beautiful calligraphic style called jade tendon seal script (see
calligraphy) (Ren p. 91).