The area now occupied by Redlands was originally part of the territory of the Morongo and Aguas Calientes tribes of Cahuilla people. Explorations such as those of Pedro Fages and Francisco Garcés sought to extend Catholic influence to the indigenous people and the dominion of the Spanish crown into the area in the 1770s. The Serrano (Mountain-Dwellers) village of Guachama, located just to the west of present-day Redlands, was visited by Fr. Francisco Dumetz in 1810, and was the reason the site was chosen for a mission outpost. Dumetz reached the village on May 20, the feast day of Saint Bernardino of Siena, and thus named the region the San Bernardino Valley. The Franciscan friars from Mission San Gabriel established the San Bernardino Asistencia in 1819 and embarked on the usual program of training the native tribes to raise crops and encouraging permanent settlements. By 1820, a ditch, known as a "zanja", was dug by native slave labor for the friars from Mill Creek to the Asistencia. In 1822, word of the Mexican triumph in the War of Independence reached the inland area, and lands previously claimed by Spain passed to the custody of the Mexican government.