| A | B |
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| World War I. | A war that began in Europe in 1914 between the Central Powers and the Allied Powers, who were joined by the United States in 1917. |
| Allied Powers. | The name given to the forces led by Great Britain, France,and Russia during World War I. The United States joined the Allied Powers in 1917. |
| Central Powers. | The forces led by Germany, Austria-Hungary, and Turkey in World War I. |
| Woodrow Wilson. | 1856-1924 The 28th President of the United States from 1913 to 1921. He led the United States during World War I and helped to found the League of Nations. |
| Virgin Islands. | A group of islands in the Caribbean Sea east of Puerto Rico that are divided politically between United States and Great Britain. |
| Versailles. | A city southwest of Paris,France, and site of such international peace conferences as the one that ended World War I. |
| Treaty of Versailles. | The peace treaty that the Allied Powers forced Germany to sign in 1919, officially ending World War I. |
| League of Nations. | An International organization set up after World War I to prevent future wars. |
| Great Migration. | The journey of hundreds of thousands of African Americans from the South to such northern manufacturing cities as Chicago that peaked in the early 1900s. |
| Discrimination. | An unfair difference in the treatment of people. |
| Booker T. Washington. | 1856-1915 Educator and founder of the Tuskegee Institute, an African American college |
| NAACP. | National Association for the Advancement of Colored People. An organization, founded in 1909 by both blacks and whites, whose goal is to fight prejudice and discrimination. |
| W.E.B. Du Bois. | 1868-1963 An educator, historian,His books are still used today. One of its founders of the National Association for the Advancement for Colored People. |
| Ida Wells-Barnett. | 1862-1931 former slave,became a reporter and part owner of Free Speech,a newspaper in Memphis,TN.Founder of the National Association for the Advancement of Colored People(NAACP) in 1909. |
| Roaring Twenties. | The decade of the 1920s, which got this nickname because of the time's prosperity and excitement. |
| Duke Ellington. | 1889-1974 Composer; African American musician who brought jazz to a wide audience in the 1920s. |
| F.Scott Fitzgerald. | 1896-1940 Writer whose early work captured the feeling of the Roaring Twenties. |
| Langston Hughes. | 1902-1967 Major African American writer of the Harlem Renaissance. |
| Jazz. | The form of popular music that grew out of African American culture in the 1920s. |
| Media. | A word to describe the methods of communication that reach a large number of people, including radio, newspapers, television, magazines and computer networks. |
| Charles Lindbergh. | 1902-1974 Airplane pilot who was the first person to fly solo nonstop across the Atlantic Ocean in 1927.It took 33hrs.and 29minutes from NewYork to Paris. |
| Amelia Earhart. | 1898-1937Airplane pilot who was the first woman to cross the Atlantic. passenger to fly across the Atlantic in 1928. |
| Suffrage. | The right to vote.It began with the Seneca Falls Convention in 1948. |
| Susan B. Anthony. | 1820-1906 A leader in the movement for women's suffrage a"the pivotal (crucial) right that underlies all other rights" |
| Carrie Chapman Catt. | 1859-1947 Women's rights leader who helped bring about the passage of the Nineteenth Amendment in 1920. |
| Nineteenth Amendment. | An amendment to the Constitution, ratified in 1920, that gave women the right to vote. |
| League of Women Voters. | A volunteer organization founded in 1920 to inform people about politics. |
| Stock exchange. | A special market where shares of stocks are bought and sold. |
| Great Depression. | The period of widespread economic hardship in the 1930s. |
| "Dust Bowl". | A 150,000-square-mile area of the Great Plains that suffered years of drought and dust storms in the 1930s. |
| Herbert Hoover. | 1874-1964 The 31st President of the United States from 1929 to 1933 who served during the beginning of the Great Depresion. |
| Franklin Delano Roosevelt. | 1882-1945 The 32nd President of the United States from 1933 to 1945. He created New Deal programs to fight the Great Depression and led the country during the World War II. |
| Eleanor Roosevelt. | 1884-1962 Writer and First Lady to the 32nd President Franklin D. Roosevelt; she traveled widely across the United States during the Depression. |
| New Deal. | Government programs started by President Franklin D. Roosevelt in the 1930s to aid businesses, farms, and the unemployed to recover from the Great Depression. |
| Unemployment. | The number of workers without jobs. |
| Hoover Dam. | A dam built in 1936 on the Colorado River at the Nevada-Arizona border by the Works Project Administration (WPA); it forms Lake Mead. |
| Hydroelectricity. | Electricity generated by the force of running water. |
| Dictators. | A leader with complete authority over the government. |
| Adolf Hitler. | 1889-1945 Nazi dictator of Germany from 1933 to 1945 whose actions led to the start of World War II and the destruction of Jews that became known as the Holocaust. |
| Axis. | The name given to the countries that fought the Allies in World War II, including Germany,Italy,and Japan. |
| Allies. | The name given to the countries allied against th Axis Powers in World War II, including the United States, Britain, France, the Soviet Union, and China. |
| World War II. | War between the Axis and the Allies that involved most of countries of the world. It was fought from 1939 to 1945.The United States joined the Allies on Dec.8,1941. |
| Pearl Harbor. | A major United States Naval base near Honolulu, Hawaii, on the island of Oahu. Japan bombed Pearl Harbor on December 7,1941. bringing the United States into World War II. |
| Communism. | A system in which the government owns all property and makes nearly all decisions for its citizens. |
| Josef Stalin. | 1879-1953 Dictator of the Soviet Union from 1923 to 1953. |
| Relocation camps. | Prison camps in which Japanese Americans were held in the western United States during World War II. |
| Dwight D. Eisenhower. | 1890-1969 The 34th President of the United States from 1953 to 1961. He was Supreme Allied Commander in World War II and directed the Allied invasion of Europe from 1944 to 1945. |
| Concentration camps. | A type of prison in which the Nazis enslaved and murdered millions of people during the World War II. |
| Holocaust. | The murder of 6 million Jews by Nazi Germany during World War II. |
| Harry S. Truman. | 1884-1972 The 33rd President of the United States from 1945 to 1953. He led the country at the end of World War II. |
| Atomic bomb. | A bomb which produces massive amounts of energy by splitting atoms. |
| Hiroshima. | A port in southwestern Japan on the island of Honshu; the first city where an atomic bomb was dropped. |
| Nagasaki. | A city in Japan on the western coast of the island of Kyushu. It was the second city struck by an atomic bomb. |
| Albert Einstein. | 1879-1955 Scientist from Germany whose theories led to the development of nuclear Power. |
| Credibility. | Accuracy or believability. |
| Harry S. Truman. | President Truman helped rebuild Western Europe after World War II. |
| Cold War. | The conflict from 1945 to 1991 between the United States and the Soviet Union, involving ideas,words,money,and weapons. |
| Iron Curtain. | The imaginary borders dividing Europe into communist and noncommunist countries from 1948 to 1991. |
| Korean War. | A war between communist North Korea, supported by China, and South Korea, supported by the United States and other United Nations members. It lasted from 1950 to 1953. |
| South Korea. | A country occupying the southern part of the Korean peninsula. |
| North Korea. | A country occupying the northern part of the Korean peninsula. |
| United Nations. | An international organization, founded in 1945 following World War II, which works to preserve world peace. |
| Dwight D. Eisenhower. | President Eisenhower was determined to stop the spread of communism. |
| Arms race. | A race to build the most powerful weapons. |
| Joseph McCarthy. | 1908-1957 United States Senator who led an anticommunist campaign from 1950 to 1954 that unjustly accused many government and military officials. |
