The American Silver Eagle is one of the most iconic and widely collected bullion coins in the world. First introduced in 1986, this coin has long been a favorite among investors and collectors due to its silver purity, striking design, and backing by the United States government.A common question that arises is whether the purity of the American Silver Eagle has ever changed. When did the American Silver Eagles change purity, if at all? This guide explains the history, purity standards, and any updates to the American Silver Eagle program.