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Kai Yuan Tong Bao

Unknown
Chinese
Place made: 
Asia; China
Kai Yuan Tong Bao, 718-732 CE (Tang Dynasty, 618-906)
Bronze (AE)
Diameter: 25 mm; 1 in
Purchase with the Marian Hayes (Class of 1925) Art Purchase Fund
MH 2012.20.39

The Kai Yuan Tong Bao was the most extensively produced and widely used coin during the 300-year reign of the Tang dynasty in China. Strict government regulation of the minting process resulted in standardized alloys (the combination of metals that make up the coin) and a consistent, recognizable style.

The Tang dynasty was connected to Central Asia and its multitude of peoples and cultures by the interconnected trade routes of the Silk Road. One Central Asian group, the Turgesh, minted many bronze coins in the style of the widespread Tang dynasty coins, copying the square cut-out in the middle. The Turgesh king, known as a khagan , often had his tamga (emblem) stamped onto the coin. Along with the presence of the Uighur language (instead of Chinese) this differentiated the Turgesh coins from their Chinese prototypes. Although the Turgesh dynasty ended in the eighth century, these coins continued to be minted until the tenth, gradually becoming less refined in their inscriptions and decoration over time.