An amendment can be proposed by either a two-thirds vote of both houses of Congress or by a constitutional convention called by Congress at the request of the legislatures in two-thirds of the states. The constitutional convention method has never been used to propose an amendment.
Tell me if you need more info :)
He was 18 years old because he was born in 1989 and the film came out at 2007,
so 2007-1989 = 18
The Great Depression had taken hold of the country
I know the first one is the 16th century