What was so important about the battle and fall of the alamo?

The Alamo was an 18th century Franciscan Mission in San Antonio, Texas, which was the location of an important battle for Texans fighting for independence from Mexico.

 When Houston received word of the defeat at the Alamo, he was inspired to begin a month-long retreat to regroup and replenish the Texas army's strength. Remembering how badly the Texans had been defeated at the Alamo, on April 21, 1836, Houston's army won a quick battle against the Mexican forces at San Jacinto and gained independence for Texas