The document summarizes the Texas Revolution that led to Texas declaring independence from Mexico in 1836. Tensions grew between Texans and Mexicans over issues like slavery and local rights. Sam Houston, a former governor of Tennessee, emerged as a leader of the Texas independence movement. The battles of the Alamo and San Jacinto were pivotal, with Santa Anna's Mexican army defeated at San Jacinto. This led to Texas gaining independence and signing treaties with Mexico recognizing the Rio Grande border. Texas then sought to join the United States as a state.