American Gold Eagles were first issued in 1986 by the United States Mint. The coin is the official gold bullion of the United States. The United States Congress authorized the coins under the American Eagle Bullion Program in 1985, allowing investors another method to conveniently and effectively invest in gold. Since the series was launched, the mint has offered different versions for investors and collectors. The American Gold Eagle proof coins are the collector version. The United States government guarantees the metal content, purity, and weight of the coins.