How might the War with Mexico be used as contextualization for an LEQ about causes of the Civil War?

Article ii "each state retains its sovereignty, freedom, and independence, and every power, jurisdiction, and right, which is not by this confederation expressly delegated to the united states, in congress assembled."—articles of confederation which of the following principles of american democracy does this quote best represent? social contract natural rights federalism rule of law

This map is depicting the 16th century route of what explorer

How do you think sintonis fiancée reacted to receiving this letter?