The American Dream formed in the late 19th century as the idea that through hard work and determination, immigrants and their descendants could attain prosperity and live happily. This vision drove economic and social expectations throughout the 20th century. However, beginning in the 1970s, events like the Vietnam War, unemployment, and rising inequality undermined belief in unlimited opportunity and caused many to question whether the American Dream was still attainable. Today, with political and economic uncertainties, the idea that one can easily achieve fortune through hard work no longer resonates as a unifying vision for many Americans.