The Ban Liang was the first unified currency of the Chinese empire, first minted as early as 378 BCE and introduced by the first emperor Qin Shi Huang as China's first unified currency around 210 BC. It was round with a square hole in the middle. Before that date, a variety of coins were used in China, usually in the form of blades or other implements, though round coins with square holes were used by the State of Zhou before it was extinguished by Qin in 249 BCE.
Knife money is the name of large, cast, bronze, knife-shaped commodity money produced by various governments and kingdoms in what is now China, approximately 2500 years ago. Knife money circulated in China between 600 and 200 B.C. during the Zhou dynasty.
The cash or qian was a type of coin of China and East Asia, used from the 4th century BC until the 20th century AD, characterised by their round outer shape and a square center hole. Originally cast during the Warring States period, these coins continued to be used for the entirety of Imperial China. The last Chinese cash coins were cast in the first year of the Republic of China. Generally most cash coins were made from copper or bronze alloys, with iron, lead, and zinc coins occasionally used less often throughout Chinese history. Rare silver and gold cash coins were also produced. During most of their production, cash coins were cast, but during the late Qing dynasty, machine-struck cash coins began to be made. As the cash coins produced over Chinese history were similar, thousand year old cash coins produced during the Northern Song dynasty continued to circulate as valid currency well into the early twentieth century.
Chinese coinage in the Ming dynasty saw the production of many types of coins. During the Ming dynasty of China, the national economy was developed and its techniques of producing coinage were advanced. One early period example is the Bronze 1 cash. Obverse: "Hongwu Tongbao" (洪武通寶). Reverse: blank. Average 23.8 mm, 3.50 grams.
The Yuan dynasty was a Mongol-ruled Chinese dynasty which existed from 1271 to 1368. After the conquest of the Western Xia, Western Liao, and Jin dynasties they allowed for the continuation of locally minted copper currency, as well as allowing for the continued use of previously created and older forms of currency, while they immediately abolished the Jin dynasty's paper money as it suffered heavily from inflation due to the wars with the Mongols. After the conquest of the Song dynasty was completed, the Yuan dynasty started issuing their own copper coins largely based on older Jin dynasty models, though eventually the preferred Yuan currency became the Jiaochao and silver sycees, as coins would eventually fall largely into disuse. Although the Mongols at first preferred to have every banknote backed up by gold and silver, high government expenditures forced the Yuan to create fiat money in order to sustain government spending.
The Liao dynasty was a Khitan-led dynasty of China that ruled over parts of Northern China, Manchuria, the Mongolian Plateau, northern Korean Peninsula, and what is modern-day Russian Far East from 916 until 1125 when it was conquered by the Jin dynasty. Remnants of the Liao court fled westward and created the Western Liao dynasty which in turn was annexed by the Mongol Empire in 1218.
The Jin dynasty was a Jurchen-led dynasty of China that ruled over northern China and Manchuria from 1115 until 1234. After the Jurchens defeated the Liao dynasty and the Northern Song dynasty, they would continue to use their coins for day to day usage in the conquered territories. In 1234, they were conquered by the Mongol Empire.
Xin dynasty coinage was a system of Ancient Chinese coinage that replaced the Wu Zhu cash coins of the Han dynasty and was largely based on the different types of currencies of the Zhou dynasty, including Knife money and Spade money. During his brief reign, Wang Mang introduced a total of four major currency reforms which resulted in 37 different kinds of money consisting of different substances, different patterns, and different denominations.
The Kaiyuan Tongbao, sometimes romanised as Kai Yuan Tong Bao or using the archaic Wade-Giles spelling K'ai Yuan T'ung Pao, was a Tang dynasty cash coin that was produced from 621 under the reign of Emperor Gaozu and remained in production for most of the Tang dynasty until 907. The Kaiyuan Tongbao was notably the first cash coin to use the inscription tōng bǎo (通寶) and an era title as opposed to have an inscription based on the weight of the coin as was the case with Ban Liang, Wu Zhu and many other earlier types of Chinese cash coins. The Kaiyuan Tongbao's calligraphy and inscription inspired subsequent Central Asian, Japanese, Korean, Ryūkyūan, and Vietnamese cash coins and became the standard until the last cash coin to use the inscription "通寶" was cast until the early 1940s in French Indochina.
The Hongwu Tongbao was the first cash coin to bear the reign name of a reigning Ming dynasty Emperor bearing the reign title of the Hongwu Emperor. Hongwu Tongbao cash coins officially replaced the earlier Dazhong Tongbao coins, however the production of the latter did not cease after the Hongwu Tongbao was introduced. The government of the Ming dynasty placed a greater reliance on copper cash coins than the Yuan dynasty ever did, but despite this reliance a nationwide copper shortage caused the production of Hongwu Tongbao cash coins to cease several times eventually leading to their discontinuation in 1393 when they were completely phased out in favour of paper money. In the year 1393 there were a total of 325 furnaces in operation in all provincial mints of China which had an annual output of 189,000 strings of cash coins which was merely 3% of the average annual production during the Northern Song dynasty.
The currency of the Taiping Heavenly Kingdom consisted of Chinese cash coins and paper money, although the rarity of surviving Taiping paper money suggests that not much was produced. The first cash coins of the Taiping Heavenly Kingdom were issued in the year 1853 in the capital of Tianjing. The cash coins of the Taiping Heavenly Kingdom should not be confused with the Taiping Tongbao (太平通寳) which was issued during the Northern Song dynasty between the years 976 and 997, or with any other contemporary rebel coinage that also bear this inscription.
The coinage of the Southern Tang dynasty consisted mostly of bronze cash coins while the coinages of previous dynasties still circulated in the Southern Tang most of the cash coins issued during this period were cast in relation to these being valued as a multiple of them.
Kangxi Tongbao refers to an inscription used on Chinese cash coins produced during the reign of the Kangxi Emperor of the Manchu-led Qing dynasty. Under the Kangxi Emperor the weights and standards of the brass cash coins changed several times and the bimetallic system of Qing dynasty coinage was established. Today Kangxi Tongbao cash coins are commonly used as charms and amulets where different forms of superstition have developed arounds its mint marks and calligraphy.
Qianlong Tongbao is an inscription used on cash coins produced under the reign of the Qianlong Emperor of the Qing dynasty. Initially the Qianlong Tongbao cash coins were equal to its predecessors in their weight and quality but as expensive military expenditures such as the Ten Great Campaigns began to take their financial toll on the government of the Qing dynasty the quality of these cash coins started to steadily decrease. The weight of the Qianlong Tongbao was changed several times and tin was added to their alloy to both reduce costs and to prevent people from melting down the coins to make utensils. As the intrinsic value of these coins was higher than their nominal value many provincial mints started reporting annual losses and were forced to close down, meanwhile the copper content of the coinage continued to be lowered while the copper mines of China were depleting. The Qianlong era also saw the conquest of Xinjiang and the introduction of cash coins to this new region of the Qing Empire.
A string of cash coins refers to a historical Chinese, Japanese, Korean, Ryukyuan, and Vietnamese currency unit that was used as a superunit of the Chinese cash, Japanese mon, Korean mun, Ryukyuan mon, and Vietnamese văn currencies. The square hole in the middle of cash coins served to allow for them to be strung together in strings. The term would later also be used on banknotes and served there as a superunit of wén (文).
Daqian are large-denomination cash coins produced in the Qing dynasty starting from 1853 until 1890. Large denomination cash coins were previously used in earlier Chinese dynasties and had faced similar issues as 19th-century Daqian. The term referred to cash coins with a denomination of 4 wén or higher.
Standard cash, or regulation cash coins, is a term used during the Ming and Qing dynasties of China to refer to standard issue copper-alloy cash coins produced in imperial Chinese mints according to weight and composition standards that were fixed by the imperial government. The term was first used for Hongwu Tongbao cash coins following the abolition of large denomination versions of this cash coin series.
Iron cash coins are a type of Chinese cash coin that were produced at various times during the monetary history of imperial China as well as in Japan and Vietnam. Iron cash coins were often produced in regions where the supply of copper was insufficient, or as a method of paying for high military expenditures at times of war, as well as for exports at times of trade deficits.
