<P> The dollar coin is a United States coin worth one United States dollar . It is the third largest American coin currently minted in terms of physical size , with a diameter of 1.043 inches ( 26.5 mm ) and a thickness of . 079 inches ( 2 mm ) , coming second to the half dollar . Dollar coins have been minted in the United States in gold , silver , and base metal versions . Dollar coins were first minted in the United States in 1794 . The term silver dollar is often used for any large white metal coin issued by the United States with a face value of one dollar , whether or not it contains some of that metal . While true gold dollars are no longer minted , the Sacagawea and Presidential dollars are sometimes referred to as golden dollars due to their color . </P>
<P> The dollar coin is a United States coin worth one United States dollar . It is the third largest American coin currently minted in terms of physical size , with a diameter of 1.043 inches ( 26.5 mm ) and a thickness of . 079 inches ( 2 mm ) , coming second to the half dollar . Dollar coins have been minted in the United States in gold , silver , and base metal versions . Dollar coins were first minted in the United States in 1794 . The term silver dollar is often used for any large white metal coin issued by the United States with a face value of one dollar , whether or not it contains some of that metal . While true gold dollars are no longer minted , the Sacagawea and Presidential dollars are sometimes referred to as golden dollars due to their color . </P>
when did the 1 dollar coin come out
when did the 1 dollar coin come out
1794
1794