These were subsequently incorporated into the Mestizo culture, along with immigrants from central Mexico, captives from Comanchería, and genízaros of various ethnic groups. celebrating a Thanksgiving Mass there on April 30, 1598 (decades before the Pilgrims' Thanksgiving).

However, the four survivors of the Narváez expedition, Álvar Núñez Cabeza de Vaca, Alonso del Castillo Maldonado, Andrés Dorantes de Carranza, and his enslaved Moor Estevanico, are thought to have passed through the area in the mid-1530s.

Also headquartered in El Paso are the DEA domestic field division 7, El Paso Intelligence Center, Joint Task Force North, United States Border Patrol El Paso Sector, and the US Border Patrol Special Operations Group (SOG).

El Paso stands on the Rio Grande river across the Mexico–United States border from Ciudad Juárez, the most populous city in the Mexican state of Chihuahua.

El Paso has a strong federal and military presence.

However, the region was claimed by Texas as part of the treaty signed with Mexico and numerous attempts were made by Texas to bolster these claims.

However, the village which consisted of El Paso and the surrounding area remained essentially a self-governed community with both representatives of the Mexican and Texan government negotiating for control until Texas irrevocably took control in 1846.

During this interregnum, 1836–1848, Americans nonetheless continued to settle the region.

As early as the mid-1840s, alongside long extant Hispanic settlements such as the Rancho de Juan María Ponce de León, Anglo settlers such as Simeon Hart and Hugh Stephenson had established thriving communities of American settlers owing allegiance to Texas.El Paso remained the largest settlement in New Mexico until its cession to the U. in 1848, when Texas took possession of it with the Compromise of 1850.The Texas Revolution (1836) was generally not felt in the region, as the American population was small; not being more than 10% of the population.The present Texas–New Mexico boundary placing El Paso on the Texas side was drawn in the Compromise of 1850.El Paso County was established in March 1850, with San Elizario as the first county seat.Stephenson, who had married into the local Hispanic aristocracy, established the Rancho de San José de la Concordia, which became the nucleus of Anglo and Hispanic settlement within the limits of modern-day El Paso, in 1844.