| A | B |
| 95 Theses | Document written by Martin Luther detailing what he believed to be the problems in the medieval Church. |
| absolute monarchy | A political system in which a country is ruled by a monarch, who has absolute control. |
| Age of Exploration | Time period during the 15th and 16th centuries when Europeans searched for new sources of wealth and for easier trade routes to China and India. Resulted in the discovery of North and South America by the Europeans. |
| Agrarian Revolution | A change in farming methods that allowed for a greater production of food. This revolution was fueled by the use of new farming technology such as the seed drill and improved fertilizers. The result of this revolution was a population explosion due to the higher availability of food. It was one of the causes of the Industrial Revolution. |
| Allied Powers | Alliance of Great Britain, Soviet Union, United States, and France during World War II. |
| American Revolution | Political revolution in the British North American Colonies starting in 1776 that removed the colonies from Great Britain’s control, and established an independent nation know as the United States of America. |
| anatomy | The branch of science that studies the physical structure of living organisms. |
| anti-Semitism | The hatred of people of Jewish descent. |
| arch | A curved structure that shapes the edge of an open space, such as, a doorway, a window. |
| Asian Tigers | Taiwan, Singapore, Hong Kong, and South Korea. These nations have experienced rapid economic growth and prosperity due to industrialization, and were aligned both politically, and economically with the West throughout the Cold War |
| assassination | The killing of a political leader or other public figure. |
| Axis Powers | Alliance of Germany, Italy, and Japan during World War II. |
| Ayatollah Khomeini | (1900?-1989) Islamic religious leader who led a fundamentalist revolution in Iran in 1979. Ruled until 1989. |
| Aztecs | A Mesoamerican civilization of Mexico who created a strong empire that flourished between the 14th and 15th century. The arrival of Hernando Cortez and the Spanish Conquistadores ended their empire. |
| Blüt und Eisen | Blood and Iron policy of Prussian chancellor Otto von Bismarck to unify all of Germany under Prussian control and build and expand it into a great empire. Very successful. |
| Bolshevik | Early name of communists during the Russian Revolution of 1917. |
| Bonaparte, Napoleon | 1769-1821) Emperor of the French. Responsible for many French Revolution reforms as well as conquering most of Europe. He was defeated at Waterloo, and died several years later on the island of Saint Helena. |
| bourgeoisie | Term given to the middle class people in society. |
| bubonic plague | An infectious disease transmitted by fleas. It is characterized by fever, chills, and the formation of swellings. Also known as the Black Plague or Black Death. |
| Cabinet System | Collection of people who run various departments in government. Usually report to the chief executive, such as the prime Minister, or the President. |