In what year did Texas secede from Mexico?

The story behind the answer

1836 is correct because on March 2 of that year, delegates at Washington-on-the-Brazos adopted the Texas Declaration of Independence, formally breaking from Mexico and creating the Republic of Texas. The Texas Revolution quickly climaxed with the Texian victory at the Battle of San Jacinto on April 21, 1836, where Santa Anna was captured, effectively securing independence.

Remember it this way: “Remember the Alamo—1836.” The Alamo’s fall (March 1836) and San Jacinto’s swift revenge anchor the year in memory. Don’t confuse 1836 with 1845—that’s when Texas was annexed by the United States. The push for independence grew from tensions over Santa Anna’s centralization and the repeal of Mexico’s 1824 federalist constitution.