Santa Bárbara became the launching place for expeditions into New Mexico by Spanish conquistadors like: Antonio de Espejo, Gaspar Castaño, Antonio Gutiérrez de Umaña, Francisco Leyba de Bonilla, and Vicente de Zaldívar. Several expeditions were led to find a shorter route from Santa Barbara to New Mexico. In April 1598, Juan de Oñate finally found a short route from Santa Barbara to New Mexico which came to be called El Paso del Norte (The Northern Pass). The discovery of El Paso Del Norte was important for the expansion of El Camino Real de Tierra Adentro (The Inner Land Royal Road) to link Spanish settlements in New Mexico to Mexico City; El Camino Real de Tierra Adentro facilitated transport of settlers and supplies to New Mexico.

Which city became the launching place for expeditions into New Mexico?