It was the idea of "Manifest Destiny" that was the belief that it was God’s plan for the United States to own most or all of North America, since people thought the US was "destined" to occupy all the territory from the Atlantic to the Pacific.
Monotheism is belief there is only 1 god
To protect the individual rights of the citizens and the individual states
The Proclamation announced the acceptance of black men into the Union Army and Navy, enabling the liberated to become liberators
It was important in the development of astronomy and science because it was the first model that aimed to predict how the planets move in their orbits. Despite being a complicated mix of circles and epicycles it was not a bad model and it worked well for at least 1500 years until observations became accurate enough to show its imperfections
