In 1792, during construction of the new Mint, 1,500 silver half dimes were made in the cellar of a nearby building. These half dimes were probably given out to dignitaries and friends and not released into circulation. The Mint delivered the nation's first circulating coins on March 1, 1793: 11,178 copper cents

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Answer:

Coinage of silver and gold coins started in 1794 and 1795. But at first, these coins didn't circulate. The Coinage Act of 1792 set the ratio of silver to gold at 15:1, which was different than the world market. U.S. gold coins were undervalued compared to silver, so they were exported and melted.

The oldest, still circulating coin (with both sides unchanged) is the Roosevelt dime, first minted in 1946. The Lincoln cent was begun in 1909, but the reverse has changed multiple times. The Jefferson Nickel began in 1938, but also has had changes to the reverse as well as obverse.

Philadelphia

On April 2, 1792, Congress passed the Coinage Act, establishing the first national mint in the United States. Congress chose Philadelphia, what was then the nation's capital, as the site of our first Mint.

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