| A | B |
| Imperialism | The practice of building an empire by founding colonies or conquering other nations |
| Isolationism | Policy of avoiding involvement in other nations’ affairs |
| Roosevelt Corollary | Pres. Theodore Roosevelt’s addition to the Monroe Doctrine; declared that the US would police affairs in the western Hemisphere to keep Europeans from intervening in the region |
| Monroe Doctrine | Pres. James Monroe’s statement warning European nations not to colonize or interfere in the Americas |
| Seward’s Folly | A nickname for Alaska purchased by Secretary of State William Seward from Russia |
| Hawaii | A Pacific Island nation that became a US territory in 1900 |
| Yellow Journalism | The use of sensational, often exaggerated new stories in newspapers or other publications in order to attract readers |
| Queen Liliuokalani | Queen of Hawaii. She was leader of Hawaii when US planters led a Revolt to take over Hawaii. |
| Joseph Pulitzer | Publisher of the New York World who was very critical of the Spanish in his newspaper and printed exaggerated stories |
| William Randolph Hearst | Publisher of the New York Journal who was very critical of the Spanish and printed exaggerated stories |
| Panama Canal | Canal built by the US across the isthmus of Panama to link the Atlantic and Pacific Oceans; opened in 1914 |
| Spanish-American War | A war Between Spain and the US in 1898 that resulted in America becoming a world power and receiving Guam, Puerto Rico, and the Philippines. Cuba also gained independence from Spain. |
| USS Maine | a US battleship docked in Havana Harbor in Cuba that exploded in 1898. Many Americans blamed Spain. |
| Rough Riders | A group of soldiers organized by Col. theodore Roosevelt that became heroes of the Spanish American War |
| Yellow Fever | A disease caused by Mosquitoes that was common in countries like Cuba |