Answer:
Presidents Roosevelt and Taft were the spokespersons or people who wanted imperialism for the United States.
Explanation:
The United States got included in imperialism because it attempted to expand Western powers and ideologies, obtain raw materials and new businesses in colonies, and build naval stations outside its boundaries to become a world leader. Imperialism also assists the economy, not just for the United States who practices the means for commerce, but for the colony itself.
The first people to make it to Oregon, was Lewis and Clark. Since their route was too harsh for ordinary people, not many people ventured there. When Jedediah Smith found the South Pass (an easier way through the Sierra Nevada), many settlers crossed the country to get to Oregon. The first people were missionaries and although not many Natives converted, their tales of fertile soil encouraged many people to venture to Oregon. They went through the country on a covered wagon. Furthermore, the challenges they faced, consisted of harsh weather, starvation (especially when crossing the Sierra Nevada), and Native American attacks.
It took about Thirty Days.
The union had several advantages over the Confederacy, such as having more men, factories, railroad tracks, and more telegraph lines.
