In which year did Texas win its independence from Mexico?

Texas won its independence from Mexico in 1836. This key event followed a series of conflicts known as the Texas Revolution, which began in October 1835 and culminated in the decisive Battle of San Jacinto on April 21, 1836. At this battle, the Texian army, led by General Sam Houston, captured the Mexican President Antonio López de Santa Anna and secured a victory that led directly to the proclamation of Texas independence.

The significance of 1836 is further underscored by the subsequent signing of the Treaties of Velasco, which recognized the sovereignty of the Republic of Texas. This year marks a pivotal moment in Texas history, as it transitioned from being a Mexican territory to an independent republic, eventually leading to its annexation into the United States in 1845. The other years listed are associated with different historical contexts: 1821 marks Mexico's own independence from Spain, 1845 signifies Texas joining the United States, and 1850 relates to Texas’s boundary adjustments as a state.