| A | B |
| Acquisition of Alaska | Purchased from the Russian Empire for $7.2 million. |
| Acquisition of Hawaii | Queen Lili’uokalani was the last ruling monarch of this island chain. |
| Attack on Pearl Harbor | A sneak attack on the U.S. by the Japanese. |
| Battle of Iwo Jima | A bloody 35-day battle, five U.S. Marines hoisted a flag on Mount Suribachi. |
| Battle of San Juan Heights | Here, the Rough Riders fought gallantly during the Spanish-American War. |
| Battle of the Bulge | This was the last major Nazi offensive against the Allies in World War II. |
| Battle of the Little Big Horn | An overwhelming victory for Native Americans (& defeat for the the U.S.). |
| Origins of World War I | The assassination of the Archduke Franz Ferdinand. |
| Distribution of Wealth | A majority of the wealth was concentrated in the hands of a few industrialists. |
| Fashion trends of the 1920s | Flappers - woman who wore a short dress, bobbed her hair, and applied makeup in public. |
| Fourteen Points | President Wilson's proposal for post-WWI peace. |
| Great Chicago Fire of 1871 | In 1871, over 100,000 people from Chicago were left homeless after an accidental fire burnt most of the city. |
| Holocaust | The systematic and state-sponsored persecution and murder of approximately 6 million Jews by the Nazis. |
| Immigration | Prior to 1880, the number of immigrants to the United States was not restricted mainly because industry owners wanted cheap labor. |
| League of Nations | The international organization founded as a result of the Paris Peace Conference that ended World War I. |
| Manhattan Project | A secret military project created in 1942 to produce the first US nuclear weapon. |
| Manifest Destiny | This American Cultures I idea was finally fulfilled with the settling of the Great Plains. |
| Meuse-Argonne Offensive | The final Allied offensive of World War I. |
| Muckrakers | In the early 20th century, muckrakers were able to influence American society mainly through their publication of articles and books. |
| Programs of the New Deal | Federal Deposit Insurance Corporation (FDIC) & the Tennessee Valley Authority and many more. |
| Reasons behind imperialism | (1) Economic (2) Nationalism (3) Militarism (4) Humanitarian |
| Reasons for Western Emigration | (1) The desire to become wealthy. (2) The desire to settle on cheap land. (3) To acquire a true sense of freedom. |
| Robber Barons/Capt. of Industry | Wealthy industrialists who used ruthless business tactics against their competitors. |
| Meat Inspection Act | Created because of the muckraking work of Upton Sinclair. |
| Spanish-American War | In this "splendid little war" the U.S. went to war with Spain after the explosion and sinking of the U.S.S. Maine. |
| Stock Market Crash | The economic success of the Roaring Twenties ended on October 29, 1929. |
| United Nations | Founded in 1945 after World War II, the U.N. replaced the League of Nations, to stop wars between countries. |
| Women Suffragettes | After being arrested some women protested by going on hunger-strikes. |
| World War I Armistice | November 11, 1918 (Now Veteran’s Day). |
| Oklahoma Territory | In 1889, the United States government opened up 2 million acres of surplus reservation land to White settlement. |
| Laissez-faire Capitalism | The economic policy of the U.S. during the era of the rise of big business (1865-1900). |
| Civil Service Exams | Eliminated patronage and corruption in government hiring. |
| The Progressive Era | During this era in U.S. history, the amendments concerning the income tax, direct election of Senators, Prohibition, and women’s suffrage were enacted. |
| Axis Powers | Nazi Germany, Italy, and Japan. |
| Blitzkrieg | Lightening Warfare |