| A | B |
| Edwin L. Drake | drilled the first oil well in Titusville, PA in 1859 |
| Christopher Sholes | invented the typewriter in 1868 |
| Alexander Graham Bell | invented the telephone in 1876 |
| Thomas A. Edison | invented the light bulb(1879), an electric generation system, and the movie camera |
| Henry Bessemer | developed an efficient method of making high quality steel in 1856 |
| Oliver Kelly | founder of the Grange |
| JP Morgan | banker who created US Steel as a holding company |
| Promontory Point, Utah | place where the transcontinental railroad was completed with the golden spike |
| Munn v. Illinois | Supreme Court case which gave states the right to regulate railroads |
| Interstate Commerce Act | gave the Federal government the sole right to regulate railroads |
| Mary Harris Jones | "Mother" Jones- union organizer |
| Industrial Workers of the World | the wobblies, an industrial union organized in Chicago by radicals and socialists |
| Social Darwinism | belief in the "survival of the fittest" in business affairs |
| Andrew Carnegie | robber baron who made his money in steel |
| Eugene V. Debs | socialist organizer of the Pullman Strike who also ran for President in 1912 |
| Sherman Antitrust Act | law which made trusts illegal |
| American Federation of Labor | union that focused on collective bargaining as a major tactic |
| James B. Duke | robber baron who made his money in tobacco |
| JP Morgan | robber baron who made money in banking and investing |
| John D. Rockefeller | founder of Standard Oil, robber baron, the first billionaire |
| George Pullman | built a town in Illinois for his rail car factory |
| Cyrus Field | laid the first telegraph cable across the Atlantic Ocean in 1866 |
| Samuel F. B. Morse | invented the telegraph in 1837 |
| John A. Roebling | designed the Brooklyn Bridge; completed by son in 1883 |
| Frank J. Sprague | built the first electrified street railway(trolley) in 1887 |