| A | B |
| muckraker | A journalist who uncovers wrongdoing on the part of politicians or corporations. |
| Upton Sinclair | He wrote "The Jungle" revealing the bad practices used within the meat packing industry. |
| Jacob Riis | He wrote "How the Other Half Lives" depicting poor living conditions in urban tenements. |
| Ida Tarbell | She wrote "The History of the Standard Oil Company" revealing the ruthless business tactics J.D. Rockefeller used to create his Standard Oil monopoly. |
| Jane Addams | She started the Hull House in Chicago, IL to assist poor immigrant children and women assimilate into American society. |
| Lewis Hine | He documented child labor taking countless photos revealing the need for laws limiting the use of child labor. |
| Booker T. Washington | He advocated for black rights and encouraged African Americans to assume a trade in order to achieve political and civil rights. |
| W.E.B. DuBois | He advocated for black rights, but encouraged Africans Americans to get a higher education and stand up and speak out for more political and civil rights. |
| secret ballot | The ability of a person to vote in private without fear of being harassed for their choice. |
| recall | A process by which voters remove a public official from office before the next election. |
| referendum | A process by which citizens vote on a law passed by their legislature. |
| direct primary | An election in which voters cast ballots to select nominees for upcoming elections. |
| initiative | A process by which citizens propose new laws by gathering signatures on a petition. |
| 16th Amendment | This amendment established the income tax requiring a portion of personal income to be "paid" back to the government. |
| 17th Amendment | This amendment requires Senators to be directly elected by the people. |
| Theodore Roosevelt | A Progressive Era president most known for his trust-busting, cosumer protection and conservation efforts. |
| William Howard Taft | A Progressive Era president most known for continuing TR's antitrust efforts, but with little success. |
| Woodrow Wilson | A Progressive Era president most known for the establishment of the Clayton Antitrust Act, the Federal Trade Commission and the Federal Reserve system. |
| John Muir | He was a conservationist who worked closely with President Roosevelt establishing our national parks. |
| Federal Reserve System | This is the central banking system established by President Wilson in 1913 regulating the nation's money supply. |
| 18th Amendment | This amendment established Prohibition making the sale and manufacture of alcohol illegal |
| Meat Inspection Act | a 1906 law in which President Theodore Roosevelt requested $3 million from Congress to establish the inspection of meat before it was sold to consumers |
| Pure Food and Drug Act | a 1906 law requiring the food industry to meet standards for consumers, but also established the Food and Drug Administration (recalls) |
| Granger Movement | a movement started in the 1880's out of concern for American farmers who were struggling with low crop prices, but increasing costs |
| Populist Movement | a movement that grew out of the Granger Movement promoting the Populist Party who was seeking more government involvement to push the issue of free silver |
| Federal Reserve System | President Woodrow Wilson endorsed this system in 1913 to regulate the money supply |