| A | B |
| multi-level timeline | used to compare events which took place at the same time but in different cultures |
| secondary sources | information about events recorded long after they occurred by people who did not witness the event |
| archaeologist | a person who learns about the past by finding and studying artifacts |
| chronology | the order in which events occurred |
| artifacts | handmade tools or objects |
| historian | a person who studies, analyzes, and writes about the past |
| decade | a period of ten years |
| century | a period of one hundred years |
| primary source | information about events recorded at the time those events occurred |
| absolute location | a specific place on the Earth (latitude and longitude) |
| relative location | where something is in relation to other locations (near, south of, west of, etc.) |