Why did the united states government spend money to improve the national highway system? how did the building of this system affect south carolina’s economy?

1 ) because the infrastructure was crumbling and became dangerous for drivers .

2)

sorry , I am not really sure about the answer for question 2 but I hope the first answer will help .

So please , if you disagree you can delete my answer .

i don't know the answer to this

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.