They believed that Western culture was superior to others
What is there another part to this question
1. Because every area on Earth has rich and diverse History, every new area is another million years of development.
2. Humans alter landscape by mining, making roads, and pollution.
3. Geography impacts history due to the fact that different areas have different climates and resources. Some places are inhabitable and some areas were so resourceful that humans could sustain their entire lives there. Human features impact events commonly. Take Syria for example; that will go down in history because it is a war. Wars, battles, etc all have a massive impact in history.
I hope this helped a little!
Three factors fueled American Imperialism.
Economic competition among industrial nations. Political and military competition, including the creation of a strong naval force. A belief in the racial and cultural superiority of people of Anglo-Saxon descent.