| A | B |
| Interstate Commerce Commission | enforced laws regulating railroad monopolies |
| Sherman Anti-Trust Act | outlawed business consolidations under trusts which monopolized and restrained free trade |
| monopolies | exclusive control of a product or service that results in fixed prices and elimination of competition |
| Political machines | Informal organizations that control formal processes of government, created by elected officials to guarantee their power |
| Immigrant | One who leaves a country to settle permanently in another |
| Andrew Carnegie | through the steel industry, because of railroads, he became the second richest man in the world |
| Haymarket bombing | Thousands dropped out of the Knights of Labor as a result |
| American Federation of Labor | led by Samuel Gompers |