Feb. 02 (UPI) -- On this date in history: In 1848, the war between the United States and Mexico formally ended with the signing of the Treaty of Guadalupe Hidalgo. It provided for Mexico's cession of the territory that became the states of New Mexico, Arizona, California, Nevada, Utah and parts of Colorado and Wyoming in exchange for $15 million. In 1876, the National Baseball League was formed, with teams in Boston, Chicago, Cincinnati, New York, Philadelphia, St. Louis, Louisville, Ky., and