San Ygnacio, originally a Mexican pueblo, was founded in 1830 by settlers from nearby
Guerrero, Tamaulipas on the outskirts of the recently established
Uribeno Ranch. Frequent
Comanche attacks in the early days of San Ygnacio necessitated the use of defensive stone architecture which has endowed the present area with uncharacteristically enduring historical sites from that period. San Ygnacio is also historically notable for its involvement in the short-lived revolution of the
Rio Grande Republic, which was established at meetings which were convened in the town in 1839. San Ygnacio played an important role in the
Garza Revolution from 1891 to 1893. Multiple small battles were fought near the town in both Mexican and American territory. San Ygnacio was attacked in June 1916 by either Mexican
Carrancistas or
Seditionists. On June 10, approximately 100 Mexicans fought a
losing battle with about 150 American soldiers from the
14th Cavalry. San Ygnacio was the site of the filming of the 1952 film
Viva Zapata. Although many of San Ygnacio's neighboring municipalities were evacuated and consolidated in the deliberate 1953 flooding of the region which created
Falcon Lake and
"New" Zapata, San Ygnacio's residents petitioned for the right to remain on their land, which was high enough to escape substantial damage. Having survived, its architectural heritage was acknowledged in 1972 when it was added to the National Register of Historic Places, being the last standing collection of Mexican Ranch vernacular architecture, representing the 19th century settlement of the lower Rio Grande valley. Its oldest building is now a National Historic Landmark, the
Treviño-Uribe Rancho, built 1830. The private River Pierce Foundation works to continue the restoration of the San Ygnacio Historic District. ==Geography==