Answer:
The military could cross the sea, and the mountains helped protect Rome
Answer:
A lot of voting locations are schools, recreation centers and the like. (I used to live in VA.)
A) D) & E) The transcontinental railroad needs more historical credit
The Fugitive Slave Laws were laws passed by the United States Congress in 1793 and 1850 to provide for the return of slaves who escaped from one state into another state or territory.