I believe it’s the constitution
Answer:
That's where they were able to find the resources they needed for economic growth like minerals such as iron and gold. They didn't settle somewhere else because no other land had the resources they were looking for.
One way that politics/society is different today as in 1939 is that in 1939 voting wasnt the same for some people, but today everyone has rights to vote. One way that is the same is that males have been president since 1939- today.