In late February 1836, a few hundred Texian and Tejano defenders took shelter inside the Alamo, a former Spanish mission turned fort in San Antonio, as Santa Anna's Mexican army of several thousand closed in. The garrison — including the famed frontiersman Davy Crockett and the knife-fighter Jim Bowie, under the joint command of William B. Travis — refused to surrender. Travis sent out a defiant letter addressed "To the People of Texas and All Americans in the World," pleading for reinforcements that never came in sufficient numbers.
The siege lasted thirteen days. In the predawn darkness of March 6, 1836, Santa Anna ordered an all-out assault. His troops breached the walls after fierce fighting, and nearly all the defenders were killed; the women, children, and a few enslaved people inside were spared and sent out to spread word of the defeat. Militarily, the Alamo was a Mexican victory and a Texian disaster.
Its political effect was the reverse. The deaths of the outnumbered defenders, fighting to the last, gave the Texan cause a story of sacrifice that proved far more valuable than the fort itself. "Remember the Alamo!" became the battle cry of the army Sam Houston rallied in the weeks that followed, channeling outrage into the force that would win independence.
Six weeks later, that army shattered Santa Anna's at San Jacinto, and the Alamo passed into legend. The mission has been preserved as a shrine and remains the most visited historic site in Texas — though modern historians continue to debate the myths layered onto it, including questions about how some defenders actually died and the role slavery played in the cause they served.
| Dates | February 23 – March 6, 1836 |
| Location | San Antonio, Texas |
| Defenders | Roughly 180–250 Texians and Tejanos |
| Notable Dead | Davy Crockett, Jim Bowie, William B. Travis |
| Outcome | Mexican victory; defenders killed |
| Legacy | Rallying cry "Remember the Alamo!" |
| Date | February 23 – March 6, 1836 |
| Location | San Antonio, Texas |