| A | B |
|---|
| patent | a government grant that allows only the inventor to make, use, and sell an invention for a certain time |
| strike | to fefuse to work until certain demands, such as higher wages or better working conditions,ar met |
| Alexander Graham Bell | Invented the Telephone |
| Thomas Edison | Invented the phonograph and the light bulb |
| Bessemer process | a process used to make iron into steel cheaply and easily |
| corporation | a large company formed by a group of investors |
| monopoly | the complete control of an industry by one company or person |
| Andrew Carnegie | he had a monopoly of the steel industry |
| John D. Rockefeller | he had a monopoly of the oil industry |
| The homestead Strike | Union steel workers went on strike in Pennsylvania to protest low wages |
| The Haymarket Sqare Riot | union workers in Chicago met in a large group to protest against a company that made farm machines. More than 60 people were hurt or killed. |
| The Pullman Strike | The owner of company that made railroad cars decided to cut workers' pay. The workers went on strike. |
| company town | a community set up and run by a company for its workers |
| labor union | a group of workers that tries to help its members |
| pollution | damage to the land,air, and water from harmful materials |
