At the time of these deliberations, Spanish silver coins, called pieces of eight, had already become the
Congress was already "regulating the value of" the nation's money by the time the Constitution was drafted. How these coins became dollars is an interesting story. Edwin Vieira tells us:
Monetary historians generally first associate the dollar with one Count Schlick, who began striking such silver coins in 1519 in J o a c h i m ' s T h a i , B a v a r i a . T h e n c a l l e d
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of eight"), or Spanish dollars (because of their similarity in weight and fineness to the
In 1785, Thomas Jefferson urged the adoption of the Spanish silver dollar as the nation's official monetary unit. In a pamphlet submitted to the delegates of the Continental Congress, he said: Taking into our view all money transactions, great and small, I question if a common measure, of more convenient size than the dollar, could be proposed.... The unit or dollar is a known coin, and the most familiar of all to the minds of people. It is already adopted from south to north; has identified our currency, and therefore happily offers itself as an unit already introduced.2
On July 6, 1785, Congress unanimously voted to adopt the
Spanish dollar as the official monetary unit of the United States.
Jefferson realized, however, that this was not sufficient. Although the coin had been one of the most dependable in terms of weight and quality, it still varied in content between issues, and a way had to be found to rate one coin in value against another. That was, after all, the service that Congress was required to render when it was given the power to "regulate the value" of money. Jefferson came directly to the point when he said: "If we determine that a dollar shall be our unit, we must then say with precision what a dollar is. This coin as struck at different times, of different weight and fineness, is of different values."3
The logic voiced by Jefferson could not be ignored. Two years later, after carefully examining the actual weight and fineness of the Spanish dollars currently in circulation, Congress
As the Spaniards continued to reduce the silver content of their coins, the pressure for the minting of an
2.
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establishment of a federal mint and also presented a powerful case for maintaining an inviolable standard for the coins to be produced by that mint. He said: