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The first metal used as a currency was silver, more than 4,000 years ago, when silver ingots were used in trade. During the heyday of the Athenian empire, the city's silver tetradrachm was the first coin to achieve "international standard" status in Mediterranean trade.
Silver was known in prehistoric times: [63] the three metals of group 11, copper, silver, and gold, occur in the elemental form in nature and were probably used as the first primitive forms of money as opposed to simple bartering. [64]
The ancient Persians used silver coins between 612–330 BC. Before 1797, ... Silver coins were among the first coins ever used, thousands of years ago.
Silver was used as money in the silver trade from 16th to 19th centuries. To gain more benefits, deceptive methods were used. Therefore, there are many books, such as Yinpu, Bianyinpu and Xinzenggeguoyinshilunjie on silver identification in this period. In the deceptive method such as wrapping lead or copper in silver were introduced in this book.
The first legal definition of sterling silver appeared in 1275, when a statute of Edward I specified that 12 troy ounces of silver for coinage should contain 11 ounces 2 + 1 ⁄ 4 pennyweights of silver and 17 + 3 ⁄ 4 pennyweights of alloy, with 20 pennyweights to the troy ounce. [11]
A silver rush in Idaho produced mines in an area known as Silver Valley, a handful of which are still active today. [29] The first major silver ore deposits in the United States were discovered at the Comstock Lode in Virginia City, Nevada, in 1859. By the 1870's, silver production had increased from 40 millions ounces per year to 80 million.
The first pure nickel coin was the Swiss 20 Rappen of 1881. A book published by the International Nickel Company of Canada in 1933 lists dozens of coins minted out of nickel. Phosphorus: Used in stainless steel alloy Acmonital for the Italian lira coins. [11] Silicon: Used in stainless steel alloy Acmonital for the Italian lira coins. [11] Sulfur
Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15] The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in about 4000 BC.