| A | B |
|---|
| time before writing developed | prehistory |
| study of remains of past cultures | archaeology |
| example of primary source | letter by revolutionary soldier |
| "Iceman" discovery so interesting | clothing and possessions discovered with him |
| passing history by word of mouth | oral tradition |
| object created by someone in the past | artifact |
| studying ancient history is difficult | no written records from ancient times |
| digging carefully to unearth | excavate |
| archaeologists discoveredwhat the Iceman's net was for | comparing it to nets used in the region today |
| information on archaeological samples are obtained by carbon-14 testing | how quickly something decayed |
