In 144 BC Emperor Jing abolished private minting in favor of central-government and commandery-level minting; he also introduced a new coin. Emperor Wu introduced another in 120 BC, but a year later he abandoned the ban liangs entirely in favor of the wuzhu (五銖) coin, weighing 3.2 g (0.11 oz). The wuzhu became China's standard coin until the Tang dynasty (618–907 AD). Its use was interrupted briefly by several new currencies introduced during Wang Mang's regime until it was reinstated in 40 AD by Emperor Guangwu. COUNT 5
QSN1 What coin replaced the ban liangs after only a year of distribution? ANS1 wuzhu QSN2 Who introduced new coinage in the year of 120 BC? ANS2 Emperor Wu QSN3 During what dynasty did the wuzhu stop being the standard coin? ANS3 Tang dynasty QSN4 What was the mass of the wuzhu coin? ANS4 3.2 g QSN5 What interrupted the use of the wuzhu coin during the reign of Wang Mang? ANS5 several new currencies