La Constancia Mexicana is a textile factory 9km (06miles) from downtown Puebla, in the state of Mexico. The factory was the first textile mill to integrate automatic machinery into the production process.[1]
The factory was built within Santo Domingo Hacienda, which had an established hydrological infrastructure useful to textile manufacturing. The hacienda's architecture was updated to the 19th-century style, giving it a unique appearance. Thus, the factory introduced a new architectural style along with the new machinery.
This site was added to the UNESCO World Heritage Tentative List on December 6, 2004 in the Cultural category.