Word definition From coursenotes
American and Mexico were on unfriendly terms with each other. The disagreement came over boundaries along Texas and in California. John Slidell was sent to Mexico in 1845 as a minister, He was given instructions to offer $25 million to the Mexicans for California. He was rejected by the Mexicans and they called this offer "insulting". After Mexico refused it lead to the Mexico American war.
Treaty of Guadeloupe Hidalgo
Mexico sold the United States all of the southwest for 15 million dollars in agreement that the rights and religion of the Mexican inhabitants of this land would be recognized by the United States government. It was drawn up by Nicholas P. Trist and sent to congress. The anti slavery congressmen passed the treaty and signed it on February 2nd, 1848.