| A | B |
| labor force | supply of people who work |
| Holocaust | the murder of 6 million jews during World War II |
| Cold War | period of great tension between the U.S. and Soviet Union |
| indentured servants | people who had to work for a period of years to gain their freedom. |
| government | organization that sets up and enforces laws |
| merchant | person who buys and sells goods for a profit |
| tributary | stream or river that flows into a larger river |
| revolution | complete and violent change in government |
| constitution | plan of government and law for a state or nation |
| artifact | manmade objects from another culture or time |
| economy | system in which people make, exchange, and use things that have value and meet their wants and needs |
| glaciers | huge slow-moving sheets of ice |
| colony | settlement in a new land that is ruled by the government of the former land |