I think oil too
Explanation:
because its what everyone fights for but not too sure
Answer:
I believe it is the last one: "That the subjects ... may have arms for their defence"
Answer:
It is used to create railroads.
Explanation:
Before the invention of railroads, the only method of travelling from one state to another is by using Caravans. This was very hard to do because it could took months for traders to reach other states by using horses.
The invention of railroads allowed people to reach states at a much faster time. It connected different areas in United States and made it easier for people to distribute their product to another states.
Eliza's grandpa has these memories stored in his individual memory.