TEXAS REPUBLIC TIMELINE:1836 - April 21 Battle of San Jacinto1836 - June Treaties of Velasco1836 – Sam Houston elected president of the Republic of Tx1838 – Mirabeau Lamar is elected president1840 – Council House Fight1841 – Sam Houston is elected president1842 – Mier Expedition 1844 - James K. Polk elected US president1844 – Anson Jones is elected Texas president1845 – Texas is annexed into the United States1846 - US and Mexican War begins1848 - Treaty of Guadalupe Hidalgo ends US/Mexico War1850 - Compromise of 1850