The Gold Standard Act of the United States was passed in 1900 (approved on March 14) and established gold as the only standard for redeeming paper money, stopping bimetallism (which had allowed silver in exchange for gold). It was signed by President William McKinley. The Act made the de facto gold standard in place since the Coinage Act of 1873 (whereby debt holders could demand reimbursement in whatever metal was preferred—usually gold) a de jure gold standard alongside other major European powers at the time.