The United States became a world economic superpower.
The main way in which the US involvement in the spanish-american war represented a shift from isolationism to intervention is that this was the first time the United States had really committed troops and resources to a war that had seemingly no effect on the expansion of US borders. It was more done out of altruism.
In the mid-1800s, western settlers and American Indians differed in their views about how the land should be used. On the other hand, white settlers sought to expand westward, exploiting the natural resources of the territory and erecting new towns in those places.
Then it gives the reader a sense of this was not a "Famous writer" but a sense that this "Was a person like me" making it more personal
