Question

1. Which term describes the position held by many Americans in 1800s that it was God’s will that the United States expand its borders? 2. By a large margin, which group made up the majority of California's population in 1840? 3. Who brought the first American settlers into the Mexican territory known as Texas in 1821?

Answer 1

The term that said US expansion was God's will is the Manifest Destiny 

The group that made up the majority of California's population in 1840 was Native Americans.

And finally, the first American settlers into the Mexican territory known as Texas in 1821 were brought by Stephen F. Austin.