Events Leading to the Mexican Constitution By FutureHistorians Oct 22, 1810 Father Hidalgo calls for Mexican Independence Period: Oct 22, 1810 to Oct 22, 1825 Mexican National Oct 22, 1812 Gutiérrez-Magee Expedition Oct 22, 1813 Battle of Medina Oct 22, 1819 Long Expedition Oct 22, 1820 Moses Austin gets permission from Spain to settle in Texas Oct 22, 1821 Mexican Independence and Stephen Austin gets permission from Mexico to settle in Texas Oct 22, 1824 Mexican Constitution of 1824 Oct 22, 1825 The Constitution Law of 1825