The new states had until recently been British colonies. How did their memory of that experience affect their view of the western lands?

The successful Revolution against England gave the American people an independent place in the family of nations. It gave them a changed social order in which heredity and privilege counted for little and human equality 'or much. It gave them a thousand memories of mutual hope and struggle. But most of all, it gave them the challenge to prove they possessed a genuine ability to hold their new place, to prove their capacity for self-government.