| Questions | Answers |
|---|---|
| People who study events in the past? | historians |
| What tool do historians use? | timeline |
| A timeline is a line marked off with a series of events and | dates |
| A length of time singled out because of a specific event that happened during that time. | period |
| The time before humans invented writing? | prehistory |
| B.C. stands for | before Christ |
| B.C.E. stands for | before common era |