1. Finding fossil man

Finding fossil man is to help archaeologists to find out where people come from.

1. Some parts of the world can not write, so the only way to preserve history is to recount it as sagas.

2. Sagas, legends are useful, because they can tell us something about migrations.

3. But sagas of some people of long ago are forgotten.

4. Tools of stone they made would give us some information about migrations.