True or False.

During the 1800s, the main reason American colonists wanted to expand territorial control within and outside the continental United States was to gain wealth through natural resources.

True.

True. During the 1800s, the main reason American colonists wanted to expand territorial control within and outside the continental United States was to gain wealth through access to and control of natural resources. This expansionist mindset was fueled by the belief in Manifest Destiny - the idea that it was the fate and duty of the United States to spread across the continent. The acquisition of new territories allowed for the exploitation of valuable resources such as land for agriculture, minerals, timber, and other resources, which were seen as essential for economic growth and prosperity.

True.

To confirm this answer, you can follow these steps:

1. Review historical accounts and primary sources: Explore documents, writings, and accounts from the 1800s to understand the motivations and goals of American colonists during that time period.

2. Analyze economic factors: Study the economic conditions of the 1800s, such as the Industrial Revolution and the demand for natural resources. Evaluate how these factors may have influenced American expansion.

3. Study historical events: Examine key events like the Louisiana Purchase in 1803, the California Gold Rush in 1848, and the acquisition of Oregon Territory in 1846. These events highlight the desire for territorial control and access to valuable resources.

4. Consider manifest destiny: Assess the concept of manifest destiny, which was prevalent during the 1800s, and how it shaped American attitudes towards territorial expansion and resource acquisition.

By conducting a comprehensive analysis of these factors, you can determine that the main reason American colonists wanted to expand territorial control within and outside the continental United States during the 1800s was indeed to gain wealth through natural resources.