Man has always had the desire to expand, to venture out to develop greater wealth. With the acquisition of the Louisiana Territory and the prospects of future land acquisition, Americans used the idea of ​​Manifest Destiny to justify their actions of moving west and their treatment of Native Americans. The idea of ​​Manifest Destiny was created directly from the doctrine of discovery and industrialization used by Europeans; this direct correlation was proven true by the verdict in the Johnson v. M'Intosh. The term “Manifest Destiny” was never actually used until 1845, but the idea was always implicit in the Doctrine of Discovery. Without understanding the Doctrine, it is impossible to understand the reasons and foundations behind the inception of Manifest Destiny. This doctrine was a set of ten steps and rules that European nations followed to avoid conflicts over land ownership, created in the early 1400s. The first steps give the discovering country full rights to purchase land from native populations. This is important because it gives the discovering country preemptive power. Conquered Indian peoples lose sovereign powers and rights to free trade and diplomatic relations, and the land they occupy is said to be vacant. Religion played a huge role in regulating doctrine, as “non-Christians were not deemed to have the same rights to land, sovereignty, and self-determination as Christians” (Miller 4). These rules were all intended to favor the ethnocentrics, with full awareness of the repercussions on those who lived in the places to be conquered. America became an independent government, discarding many ideals present in that of England. But it was the Doctrine of Discovery... at the heart of the card... of knowledge. In addition to legal title, Sullivan argued, even more forcefully, that God had given Oregon to the United States to aid in the expansion and spread of a Christian world. With this argument presented in public form, Americans began to accept the phrase of manifest destiny as a link between themselves, God, and westward expansion. The drive to expand westward, fueled by Manifest Destiny, led to colonization and the connections that make up America. today, influenced by the Doctrine of Discovery, industrialization, and the outcome of court cases such as Johnson v. M'Intosh. Without this, the unification and power of the United States would be significantly less and less influential on the world. As for the novel itself, the book was really fun and easy to read. The author's opinion came with sufficient evidence to support his claim.