| A | B |
|---|
| prehistory | the time before there was writing |
| hominid | an early ancestor of humans |
| ancestor | a relative who lived in the past |
| 'Homo erectus | upright man |
| tool | handheld object that has been modified to help a person accomplish a task |
| Paleolithic Era | The first part of the Stone Age or Old Stone Age |
| society | a community of people who share a common culture |
| hunter-gatherers | people who hunt animals and gather wild plants, seeds, fruits, and nuts to survive |
| distribute | to divide among a group of people |
| migrate | move to new places |
| ice ages | the freezing times |
| land bridge | a strip of land connecting two continents |
| Mesolithic Era | Middle Stone Age |
| Neolithic Era | New Stone Age |
| domestication | the process of changing plants or animals to make them more useful to humans |
| agriculture | farming |
| Megaliths | huge stones used as monuments or the sight for religious gatherings |
