| A | B |
| new weapons | tank, poison gas, machine gun |
| homefront support | women worked, meatless Tuesdays |
| Zimmerman telegram | German attempt to get Mexico on their side |
| WWI nicknames | Great War, War to End all Wars |
| Eleanor Roosevelt | worked for equal rights for all Americans |
| Seward's Folly or Icebox | Alaska |
| imperialism | building empire through colonies |
| Social Security | New Deal program for retirement |
| Treaty of Versailles | ended WWI, punished Germany |
| Rough Riders/Buffalo Soldiers | charged up San Juan Hill, Cuba |
| Woodrow Wilson | WWI President proposed League of Nations |
| Allies | Britain, France, Russia |
| Theodore Roosevelt | built Panama Canal, started National Parks |
| Charles Lindbergh | first fly across Atlantic Ocean |
| Alaska & Hawaii | 49th, 50th states |
| isolationism | staying out of other countries'affairs |
| Dust Bowl | severe drought on Great Plains |
| Lusitania | sunk by German U-boat |
| Oct. 24, 1929 | stock market crash |
| Central Powers | Germany, Austria-Hungary |
| New Deal | FDR's program for Great Depression |
| Queen Liliuokalani | leader of independent Hawaii |
| Puerto Rico, Guam, Phillipines | US territories after Sp-Am War |
| USS Maine explosion | started Sp-Am War |