......June 18, 1846 State constitution completed, but rejected by the people......1846 Colonel Doniphan, with 924 Missouri volunteers, defeats 4,000 Mexicans under General Heredia in the pass of Sacramento ......Feb. 28, 1847 First line of telegraph between East St. Louis and the East completed......Dec. 20, 1847 Decision of the Supreme Court of the United States upon the northern boundary is co...