| A | B |
| pony express | delivery of mail by horseback |
| telegraph | device that sends messages over wire using electricity |
| Transcontinental Railroad | railroad crossing the continent |
| stagecoach | a type of four-wheeled closed coach for passengers and goods |
| Promontory Point, Utah | place where the 2 railroads met to form the Transcontinental Railroad |
| pioneer | Early settler of a region |
| Homestead Act | Law signed in 1862 offering free land to people willing to start new farms on the Great Plains |
| homesteader | Settlers who claimed land on the Great Plains under the Homestead Act |
| sodbuster | Great Plains farmer of the late 1800s who had to cut through sod, or thick grass, before planting crops. |
| exoduster | African American pioneer |
| cattle drive | cowboys guiding cattle to railroad lines |
| gold rush | Sudden movement of many people to an area where gold has been found |
| entrepreneur | Person who starts a new business, hoping to make a profit |
| reservation | Land set aside by the government for Native Americans |
| Battle of Little Bighorn | Lakota defeat of George Custer |