| A | B |
| nativism | fear of foreigners |
| isolationism | to pull away from world affairs |
| quotas | race-based restriction on immigration |
| Nicolo Sacco | anarchist, immigrant and draft-dodger |
| Red Scare | 1919-1921 |
| communism | government controls all property |
| anarchism | opposed to all forms of government |
| A. Mitchell Palmer | U.S. Attorney General |
| FBI | agency created to round up radicals |
| Calvin Coolidge | he put down the Boston Police Strike |
| U.S. Steel | it had to give striking workers an 8-hour day |
| Ku Klux Klan | racist group that gains followers in 1920s |