| A | B |
| Bull Moose Party | nickname for Roosevelt's Progressive Party in the 1912 election |
| commissions | government departments to improve efficiency & eliminate corruption |
| conservation | planned management of natural resources |
| direct primary | method of allowing voters to choose their own candidates for office |
| Ida Tarbell | exposed the ruthless methods Standard Oil used to destroy competitors |
| income tax | 16th Amendment; allowed the federal government to pass direct taxes, such as one on income |
| Lincoln Steffens | exposed corrupt businessmen, politicians & police |
| muckraking | journalism which exposed corruption |
| Prohibition | 18th Amendment; banned the manufacture, sale & transportation of alcohol; repealed by the 21st |
| Robert LaFollette | governor & reformer; Wisconsin Idea |
| Square Deal | Roosevelt's program to treat every citizen fairly; applied to labor disputes |
| Theodore Roosevelt | 26th pres.; Republican & Progressive reformer |
| Upton Sinclair | author of The Jungle, which exposed the meatpacking industry |
| William Taft | Republican president who succeeded Roosevelt |
| Woodrow Wilson | 28th pres.; Democrat & Progressive reformer; president during WWI |
| World War I | led to women gaining suffrage, after they replaced men in the factories |