Jimmy Hoffa was an American labor union leader known for his role as the president of the International Brotherhood of Teamsters from 1957 until 1971. He was a prominent figure in the labor movement, advocating for workers' rights and better wages. Hoffa's leadership style was often controversial, and he was linked to organized crime, which led to legal troubles throughout his career. In 1975, Hoffa mysteriously disappeared from a Detroit parking lot, and his fate remains unknown. His disappearance sparked numerous investigations and theories, making him a subject of public fascination and speculation. Despite extensive searches, Hoffa was never found, and his case remains one of America's most famous unsolved mysteries.