| A | B |
| Edwin L. Drake | First person to use steam engine to drill for oil |
| Bessemer process | Technique used to make steel from iron |
| Thomas Alva Edison | Inventor of the light bulb |
| Christopher Sholes | Inventor of the typewriter |
| Alexander Graham Bell | Inventor of the telephone |
| transcontinental railroad | A railroad that crosses the entire country |
| George M. Pullman | Inventor of the sleeping car |
| Credit Mobilier | Name of company involved in stealing of railroad money |
| Munn v. Illinois | Court case that gave government right to regulate private industry |
| Interstate Commerce Act | Law granting Congress authority to regulate railroad activities |
| Andrew Carnegie | Scottish immigrant who became a giant in the steel industry |
| vertical integration | Process in which a company buys out its suppliers |
| horizontal integration | Process in which companies producing similar products merge |
| Social Darwinism | Therory that taught only the strong survived |
| John D. Rockefeller | Head of the Standard Oil Company |
| Sherman Antitrust Act | Law that outlawed trusts |
| Samuel Gompers | Union leader |
| Amercian Federation of Labor (AFL) | Name of union led by Gompers |
| Eugene V. Debs | Leader of the American Railway Union |
| Industrial Workers of the World (IWW) | Union of radicals and socialists nicknamed the Wobblies |
| Mary Harris Jones | Organizer for United Mine Workers |