American settlement in Texas (the Alamo, Texan independence, and Texas annexation)
Texas was brought into the US as as slave state. The annexation of Texas happened in 1845 under John Tyler, the 10th president. The first president of the Republic of Texas was Sam Houston. Sam Houston routed Santa Anna's army at the Battle of San Jacinto in April 1836. This forced General Santa Anna to recognize Texan independence. The Alamo was a mission compound in San Antonio. 187 American and Tejano defenders were killed in the heated but eventually one sided battle.