chap 12 By p40flytig Feb 13, 1819 adems onis treaty Feb 13, 1830 morman church Feb 13, 1835 alamo Feb 13, 1845 james k polk elected Feb 13, 1845 texas annexation Period: Feb 13, 1845 to Feb 13, 1848 mexican usa war Feb 13, 1846 mormon migration Feb 13, 1846 canada us border set at oragan Feb 13, 1846 GOLD RUSH Feb 13, 1847 whitman mission attacked Feb 13, 1848 treaty of guadalupe hidalgo