What is the process of westward migration?

Answer 1

The process of westward migration is referring to an exponentially important element of American history. It is the term that describes the expansion that took place during the times of the Continental United States. It explains that the colonies branched westward during that time, contributing to what we now know as The United States of America (instead of what was once known as The Continental US).

Answer 2

Westward migration or westward expansion was the principle of manifest destiny and expanding the United States of America.