The first president of the Republic of Texas was Sam Houston, who took office in 1836 after Texas declared its independence from Mexico. Houston, a pivotal figure in Texas history, previously served as a governor of Tennessee and played a crucial role in the Texian Army’s victory at the Battle of San Jacinto. As president, he focused on establishing a functioning government, securing recognition of Texas as an independent nation, and addressing issues such as finances and relations with Native American tribes. Houston's leadership cemented his legacy as a key architect of Texas's early political identity.