The American quarter dollar coin has been in circulation since 1796. It is the smallest denomination of US currency and is made of a copper-nickel alloy. The quarter dollar coin has a long and interesting history, and is still widely used today. The first quarter dollar coins were minted in 1796 and featured a design of a bald eagle on the reverse side. This design was used until 1807, when it was replaced by the Draped Bust design. This design was used until 1838, when it was replaced by the Liberty Seated design. This design was used until 1891, when it was replaced by the Barber design. This design was used until 1916, when it was replaced by the Standing Liberty design. This design was used until 1930, when it was replaced by the Washington design, which is still in use today. The quarter dollar coin is also known for its collectible value. Many rare and valuable coins have been minted over the years, including the 1804 Draped Bust quarter, the 1838-O Liberty Seated quarter, and the 1916 Standing Liberty quarter. These coins are highly sought after by collectors and can be worth thousands of dollars. The American quarter dollar coin is an important part of US currency and has a long and interesting history. It is still widely used today and is also a popular collectible item. Whether you are looking to use it as currency or collect it as a hobby, the quarter dollar coin is a great choice.