The correct answer to this open question is the following.
You forgot to include the map. However, doing some research, we can say the following.
The map refers to the Hebrew migration. So the correct answer is: "to show where humans moved and settled."
The purpose of this kind of map is to show where humans moved and settled.
If we take a look at the map, we can see the Hebrew migration direction to the fertile crescent and Egypt. Another arrow signals Ur -the Sumerian city-state- and follows the Euphrates River northwest. From there, it follows south through Canaan, and then into Egypt.
So the map tries to inform the way people have had to continually migrate -in this case, Jewish people- and how wandering through these territories has been a constant characteristic of the Hebrew people since the beginning of the first civilizations on planet earth.
