The 55th Congress of the United States convened from March 4, 1897, to March 4, 1899. It was a session of the legislative branch, consisting of the Senate and the House of Representatives. The Congress was primarily controlled by the Republican Party, which held a majority in both chambers. During this period, significant legislation included the Dingley Tariff Act, which raised tariffs on imports, and the Gold Standard Act, which established gold as the sole standard for redeeming paper money. The 55th Congress also addressed issues related to U.S. territories acquired during the Spanish-American War.