According to the creator of the chart, what was or is the goal of manifest destiny?

American history was built on a chronological record of significant events, each event having a cause and subsequent effect on another event. Historical events are presented in history as being tangible, being tied to a date, or an exact happening. Manifest Destiny on the other hand, is a phenomenon. It can not be tied to a date, event or even a specific period of time. Manifest Destiny existed and still exists as the philosophy that embraces American history as a whole. 

Manifest Destiny was a period of American expansion that stretched from coast to coast. They also helped fuel western settlement, Native American removal, and war with Mexico.