Because maybe bad things will happen or if there is a war
We know this thanks to archaeologists who excavated many places and discovered that many early civilizations gathered around large rivers where they could develop agriculture. This was seen in places such as Mesopotamia, India, China, Egypt, etc.
Voltaire Voltaire
French writer and philosopher
The idea that O'Sullivan describes in this quotation is A) manifest destiny. Manifest Destiny was an idea that O'Sullivan was responsible for popularizing in the 1800s. This political theory or ideology sought for the United States to expand its borders to the Pacific Coast based upon a god given right to expansion which he called Manifest Destiny.
