1)when the explorers travel they have something to look at
2)they can do some historical research on them
3)that they had some attacks and the fort was used as a defend its position
These are some that you could use i strongly suggest you use the third one
Hope this helps:)
The two main factors that contributed to this quiet depression was A) That demand for crops had began to fall dramatically due to other food sources and B) That they were experiencing bad weather.
Urban focus describes the way ancient civilizations were organized around cities (urban areas).
Holocaust cause the death of many jews.
The U.S is one of the reasons why we discovered the concentration camps
