Slave raids by Spaniards into what became Texas began in the 16th century and created an atmosphere of antagonism with Native Americans (Indians) which would cause endless difficulties for the Spanish in the future.
Grazing of European livestock caused mesquite to spread inland replacing native grassland while Spanish farmers tilled and irrigated the land and changed the landscape.
While unable to fulfill their original goal of locating the French settlement, the expeditions did provide Spain a deeper understanding of the geography of the Gulf Coast region.
The Spanish government was unwilling to provide the funding and troops for the project, so Hidalgo approached the French governor of Louisiana, Antoine de la Mothe Cadillac for help.
[27] On April 12, 1716, an expedition led by Domingo Ramón left San Juan Bautista for Texas, intending to establish four missions and a presidio which would be guarded by twenty-five soldiers.
Several days later, Mission Nuestra Señora de la Purísima Concepción was established at the main village of the Hainai, the head tribe of the Hasinai Confederacy, along the Angelina River.
On May 1, the group created a temporary mud, brush and straw structure to serve as a mission, San Antonio de Valero, whose chapel was later known as the Alamo.
Given a status higher than a village (pueblo) but lower than a city (ciudad), San Antonio became the only villa in Texas, and the colonists who settled there relied on farming and ranching to survive.
Aguayo then ordered the building of a new Spanish fort Nuestra Señora del Pilar de los Adaes, located near present-day Robeline, Louisiana, only 12 miles (19 km) from Natchitoches.
Unlike the established settlers, who relied on ranching, the Islanders were primarily farmers, and their refusal to build fences led to many disagreements when livestock trampled the fields.
[57] By the early 1740s, however, intermarriage and the need for closer economic ties had helped to alleviate some of the infighting, and the original settlers were given permission to serve as magistrates and council members.
Although the Louisiana colony was a financial liability, King Carlos III of Spain reluctantly accepted it, as that meant France was finally ceding its claim to Texas.
[79] In May 1776, King Carlos III created a new position, the Commandancy General of the Internal Provinces of the North (Provincias Internas), to control frontier areas across northern New Spain, including Spanish Texas.
[83] The threat of Apache raids led to a constant state of unease in San Antonio, and some families left the area, while others refused to leave the safety of the town to tend their livestock.
[103] The Comanche were defeated in a battle in Colorado in 1779 by a Spanish army led by New Mexico governor Juan Bautista de Anza and redirected their activities to the weakly defended Texas.
[109] By late 1786, northern and western Texas were secure enough that Pedro Vial and a single companion safely "pioneered a trail from San Antonio to Santa Fe," a distance of 700 miles (1,100 km).
[112] In January 1790, the Comanche also helped the Spanish fight a large battle against the Mescalero and Lipan Apaches at Soledad Creek west of San Antonio.
The soldiers continued to explore the coast, and reported that foreign powers could easily build a small settlement on the barrier islands, which were difficult to access from the mainland, and then ascend the Trinity or San Jacinto Rivers into the heart of Texas.
Captain Luis Cazorla, the commander of the La Bahía presidio, recommended that Spain build a small fort on the barrier islands and provide a shallow-draft vessel to continually reconnoiter the coast.
Over a period of days, the Karankawa lured a few men at a time from the ship with offers of assistance and killed all but one, a Mayan sailor named Tomás de la Cruz.
[124] Several months later, the Native Americans living at Mission Rosario, near La Bahía, escaped to join the Karankawa, and together they began raiding livestock and harassing settlers.
[148] Thomas Jefferson claimed that Louisiana stretched west to the Rocky Mountains and included the entire watershed of the Mississippi and Missouri Rivers and their tributaries, and that the southern border was the Rio Grande.
[156] While on a mission for the United States Army to explore some of the disputed areas of the Louisiana Purchase[157] Zebulon Pike was arrested by the Spanish while camping on the Rio Grande and escorted back to Natchitoches.
[140] Calling themselves the Republican Army of the North, the group captured San Antonio in 1813, assassinated the governor, Manuel María de Salcedo, and proclaimed Texas independent from Spain.
[167] Fearing that the Comanche would still constitute a threat, Spanish general Arredondo ordered all ranchers to move temporarily to San Antonio to help defend the city.
[165][171] For the next two years, until early February 1821, Spain delayed ratification of the treaty, using it as leverage to prevent the United States from formally recognizing one of the rebellious Spanish colonies as an independent nation.
[173] An essay in the City of Washington Gazette denounced the treaty, claiming that "'a league'" of the land in Texas was worth more to the United States "'than the whole territory west of the Rocky Mountains'".
The following year Long established a new base near Galveston Bay "to free Texas from 'the yoke of Spanish authority... the most atrocious despotism that ever disgraced the annals of Europe.
[191] Spanish architectural concepts were also adopted by those in Texas, including the addition of patios, tile floors and roofs, arched windows and doorways, carved wooden doors, and wrought iron grillwork.
[194] Furthermore, Spanish law allowed an independent executor to be named in probate cases who is not required to gain court permission for each act not explicitly listed in the testament.