| A | B |
| Invention of steel plow | farming was easier on the great plains |
| Transcontinental Railroad opened | people traveled farther west quicker |
| telegraph | communication between east and west was speedier |
| bad weather and grasshoppers plagued farmers | surviving as a homesteader was a hard life |
| few trees available on plains | sodbusters built soddies or dugouts |
| Life was hard for African Americans after the Civil War in the South | Exodusters moved west to begin new lives of hope |
| Homestead Act passed in 1862 | Setttlers traveled west to claim land of their own |
| farms and towns and railroads sprouted up in the west | the buffalo lost their lives and grasslands |
| shortages of workers in California | Chinese were hired by Central Pacific RR going east |
| Irish immigrants looking for jobs | worked for Union Pacific RR going west |
| water on the surface was scarce | windmills invented to provide power |