What principles of government are expressed in the declaration of independence?

Where did the domestication of crops and animals begin?

The idea of manifest destiny simply stated it was america's destiny to expand from the atlantic ocean to the pacific. the word "destiny" implies an idea that it was within our rights as a nation to expand. in a paragraph of 125+ words, explain what could be wrong with that idea.

What role did oregon play in the 1844 presidential election