| A | B |
| Ice Age | a long cold period of time that lasted millions of years |
| Glacier | a large sheet of ice that covered partsof the Earth during the Ice Age |
| Old Stone Age | the first stage of human life that began about 2 million years ago |
| Nomad | a person that travels from place to place in search of food and has no permanent home |
| New Stone Age | a period that lasted about 5,000 years. About 8,000 years ago. |
| Civilization | a culture that developed systems of government, religion, and learning |
| Specialize | when people are trained to do a particular kind of work |
| Artisan | a person skilled in crafts such as carving or took making |
| Technology | the use of skills and tools that serve human needs |
| History | the written record of what has happened in the past |
| Prehistory | the period before events were recorded in writing |
| Artifacts | objects that were made by people long ago, such as tools |
| Archeology | the study of the remains of past cultures |
| Primary Sources | first-hand accounts of an event such as an official document, a diary or a letter |
| Secondary Sources | written records of the past such as a book by a historian that is based on imformation from a primary source or sources |
| Domesticate | to tame animals in order to make them useful to people |
| Cultivate | to prepare and use land for raising crops |
| Customs | a social habit or way of living in a group |
| Society | a group of people bound together by the same culture |
| Values | the beliefs, or ideals, that guide the way people live |
| Government | the established form of ruling; another part of culture |
| Religion | a belief in God or Gods |
| Legacy | the tradition and knowledge of a culture that has been handed down to people today |