| A | B |
| Andrew Carnegie | The creator of U.S. Steel |
| J.D. Rockefeller | The owner of Standard Oil Company. |
| Cornelius Vanderbilt | He owned a majority of the railroads in the U.S. |
| Social Darwinism | The strong will gain more wealth and the weak will not. |
| Eugene V. Debs | The leader of the Pullman Palace Car Strike. |
| Trust | Combining multiple corporations to give control to a board of trustees which control almost an entire industry |
| Monopoly | Owning all aspects of a particular product or industry so there is no competition. |
| Vertical Integration | Working to own all aspects within one industry. |
| Horizontal Integration | Working to own all aspects of an industry including the transportation of goods and manufacturing of all parts |
| Pullman Strike | A strike against the Pullman Palace Car Company due to unfair business practices |
| Bessemer Process | The process of blowing air through molten iron to create steel |
| American Federation of Labor | One of the first labor unions in the U.S. that was created by Samuel Gompers |
| Triangle Shirtwaist Factory | A tragedy in New York in which female workers were locked in as a fire broke out burning them alive |
| Sherman Antitrust Act | The first U.S. measure to prohibit trusts and monopolies from forming |
| Haymarket Affair | A labor union riot in Chicago that was started by protestors throwing a bomb into a crowd of police and they retaliated killing 4 civilians. |
| Samuel Gompers | Created the AFL |