| Major Federal Progressive Measures, 1883–1921 |
| Before 1900 |
| Pendleton Civil Service Act (1883) |
| Hatch Act (1887; Chapter 17) |
| Interstate Commerce Act (1887; Chapter 17) |
| Sherman Antitrust Act (1890) |
| Federal income tax (1894; struck down by Supreme Court, 1895) |
| During Theodore Roosevelt’s Presidency, 1901–1909 |
| Newlands Reclamation Act for federal irrigation (1902) |
| Elkins Act (1903) |
| First National Wildlife Refuge (1903; Chapter 18) |
| Bureau of Corporations created to aid Justice Department antitrust work (1903) |
| National Forest Service created (1905) |
| Antiquities Act (1906; Chapter 18) |
| Pure Food and Drug Act (1906; Chapter 19) |
| Hepburn Act (1906) |
| First White House Conference on Dependent Children (1909) |
| During William Howard Taft’s Presidency, 1909–1913 |
| Mann Act preventing interstate prostitution (1910; Chapter 19) |
| Children’s Bureau created in the U.S. Labor Department (1912) |
| U.S. Commission on Industrial Relations appointed (1912) |
| During Woodrow Wilson’s Presidency, 1913–1920 |
| Sixteenth Amendment to the Constitution; federal income tax (1913) |
| Seventeenth Amendment to the Constitution; direct election of U.S. senators (1913) |
| Federal Reserve Act (1913) |
| Clayton Antitrust Act (1914) |
| Seamen’s Act (1915) |
| Workmen’s Compensation Act (1916) |
| Adamson Eight-Hour Act (1916) |
| National Park Service created (1916; Chapter 18) |
| Eighteenth Amendment to the Constitution; prohibition of liquor (1919; Chapter 22) |
| Nineteenth Amendment to the Constitution; women’s suffrage (1920; Chapter 21) |