Progressive Era By hnmeres Period: 1890 to 1920 Progressive Era Period: 1916 to 1918 Lack of Child Labor Laws Congress passed laws, but the Supreme Court declared them unconstitutional. Dec 18, 1917 Prohibition (18th Amendment) Passed by Congress Jan 16, 1919 Prohibition (18th Amendment) Ratified Jun 4, 1919 Women's Suffrage (19th Amendment) Passed by Congress Aug 18, 1920 Women's Suffrage (19th Amendment) Ratified
