They are more commonly known as the bill of rights.
Answer:
To encourage railroad construction across the Great Plains, the federal government gave land grants to many railroad companies. The railroads then sold the land to settlers, real estate companies, and other businesses to raise money to build the railroad.
Explanation:
Don’t go to the links there hacks
I believe it was the Arab Oil Embargo, because during this time we weren’t receiving as much oil so the speed limit had to go down to 55mph to preserve what we did have.