The siege at Alamo was February 23 , 1836. The building in San Antonio we call the Alamo originally was built as the chapel of the Mission San Antonio de Valero. Valero mission was established at San Pedro Springs in present-day San Antonio in 1718 by Fray Antonio de San Buenaventura y Olivares, a Franciscan missionary of the College of Santa Cruz de Querétaro
Approx. 300 years old
Sorry I have no to much information about the Alamo
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