Texas lies between two major cultural spheres of Pre-Columbian North America: the Southwestern and the Plains areas. Archaeologists have found that three major indigenous cultures lived in this territory, and reached their developmental peak before the first European contact. These were:

the Pueblo from the upper Rio Grande region, centered west of Texas;the Mississippian culture, also known as Mound Builders, which extended along the Mississippi River Valley east of Texas; and the civilizations of Mesoamerica, centered south of Texas. Influence of Teotihuacan in northern Mexico peaked around AD 500 and declined over the 8th to 10th centuries.

When Europeans arrived in the Texas region, there were several races of Native peoples divided into many smaller tribes. They were Caddoan, Atakapan, Athabaskan, Coahuiltecan & Uto-Aztecan. The Uto-Aztecan Puebloan peoples lived neared the Rio Grande in the western portion of the state, the Athabaskan-speaking Apache tribes lived throughout the interior, the Caddoans controlled much of the Red River region & the Atakapans were mostly centered along the Gulf Coast. At least one tribe of Coahuiltecans, the Aranama, lived in southern Texas. This entire culture group, primarily centered in northeastern Mexico, is now extinct. It is difficult to say who lived in the northwestern region of the state originally. By the time the region came to be explored, it belonged to the fairly well-known Comanche, another Uto-Aztecan people who had transitioned into a powerful horse culture, but it is believed that they came later and did not live there during the 16th century. It may have been claimed by several different peoples, including Uto-Aztecans, Athabaskans, or even Dhegihan Siouans.

No culture was dominant in the present-day Texas region, and many peoples inhabited the area. Native American tribes that lived inside the boundaries of present-day Texas include the Alabama, Apache, Atakapan, Bidai, Caddo, Aranama, Comanche, Choctaw, Coushatta, Hasinai, Jumano, Karankawa, Kickapoo, Kiowa, Tonkawa, and Wichita. The name Texas derives from táyshaʔ, a word in the Caddoan language of the Hasinai, which means “friends” or “allies”

The region was primarily controlled by the Spanish for the first couple centuries of contact, until the Texas Revolution. They were not particularly kind to their native populations—even less so with the Caddoans, who were not trusted as their culture was split between the Spanish & the French. When the Spanish briefly managed to conquer the Louisiana colony, they decided to switch tactics and attempt being exceedingly friendly to the Indians, which they continued even after the French took back the colony. After the 1803 Louisiana Purchase, the United States inherited this odd circumstance. The Caddoans preferred the company of Americans & almost the entire population of them migrated into the states of Louisiana & Arkansas. The Spanish felt jilted after having spent so much time & effort and began trying to lure the Caddo back, even promising them more land. Seemingly without actually knowing how they came by it, the United States (who had begun convincing tribes to self-segregate from whites by selling everything and moving west ever since they gained the Louisiana Purchase) faced an overflow of native peoples in Missouri & Arkansas & were able to negotiate with the Caddoans to allow several displaced peoples to settle on unused lands in eastern Texas. They included the Muscogee, Houma Choctaw, Lenape & Mingo Seneca, among others, who all came to view the Caddoans as saviors, making those peoples highly influential.

Whether a Native American tribe was friendly or warlike was critical to the fates of European explorers and settlers in that land. Friendly tribes taught newcomers how to grow indigenous crops, prepare foods, and hunt wild game. Warlike tribes made life difficult and dangerous for Europeans through their attacks and resistance to the newcomers.

During the Texas Revolution, the U.S. became heavily involved. Prior treaties with the Spanish forbade either side from militarizing its native population in any potential conflict between the two nations. At that time, several sudden outbreaks of violence between Caddoans & Texans started to spread. The Caddoans were always clueless when questioned, The Texan & American authorities in the region could never find hard evidence linking them to it & often it was so far flung from Caddoan lands, it barely made any sense. It seems most likely that these were false-flag attacks meant to start a cascading effect to force the natives under Caddoan influence into armed conflict without breaking any treaties—preferably on the side of the Spanish. While no proof was found as to who the culprit was, those in charge of Texas at the time attempted multiple times to publicly blame and punish the Caddoans for the incidents with the U.S. government trying to keep them in check. Furthermore, the Caddoans never turned to violence because of it, excepting cases of self-defense.

By the 1830s, the U.S. had drafted the Indian Removal Act, which was used to facilitate the Trail of Tears. Fearing retribution of other native peoples, Indian Agents all over the eastern U.S. began desperately trying to convince all their native peoples to uproot and move west. This included the Caddoans of Louisiana & Arkansas. Following the Texas Revolution, the Texans chose to make peace with their Native peoples, but did not honor former land claims or agreements. This began the movement of Native populations north into what would become Indian Territory—modern day Oklahoma.

Earlier 20th century

In 1900, Texas suffered the deadliest natural disaster in U.S. history during the Galveston hurricane. On January 10, 1901, the first major oil well in Texas, Spindletop, was found south of Beaumont. Other fields were later discovered nearby in East Texas, West Texas, and under the Gulf of Mexico. The resulting “oil boom” transformed Texas. Oil production eventually averaged three million barrels per day at its peak in 1972.

In 1901, the Democratic-dominated state legislature passed a bill requiring payment of a poll tax for voting, which effectively disenfranchised most blacks, and many poor whites and Latinos. In addition, the legislature established white primaries, ensuring minorities were excluded from the formal political process. The number of voters dropped dramatically, and the Democrats crushed competition from the Republican and Populist parties. The Socialist Party became the second-largest party in Texas after 1912, coinciding with a large socialist upsurge in the United States during fierce battles in the labor movement and the popularity of national heroes like Eugene V. Debs. The Socialists’ popularity soon waned after their vilification by the United States government for their opposition to US involvement in World War I.

The Great Depression and the Dust Bowl dealt a double blow to the state’s economy, which had significantly improved since the Civil War. Migrants abandoned the worst hit sections of Texas during the Dust Bowl years. Especially from this period on, blacks left Texas in the Great Migration to get work in the Northern United States or California and to escape the oppression of segregation. In 1940, Texas was 74 percent Anglo, 14.4 percent black, and 11.5 percent Hispanic.

World War II had a dramatic impact on Texas, as federal money poured in to build military bases, munitions factories, POW detention camps and Army hospitals; 750,000 young men left for service; the cities exploded with new industry; the colleges took on new roles; and hundreds of thousands of poor farmers left the fields for much better paying war jobs, never to return to agriculture. Texas manufactured 3.1 percent of total United States military armaments produced during World War II, ranking eleventh among the 48 states.

Texas modernized and expanded its system of higher education through the 1960s. The state created a comprehensive plan for higher education, funded in large part by oil revenues, and a central state apparatus designed to manage state institutions more efficiently. These changes helped Texas universities receive federal research funds.

On November 22, 1963, President John F. Kennedy was assassinated in Dallas.

Economic and political change (1950–present)

Beginning around the mid-20th century, Texas began to transform from a rural and agricultural state to one urban and industrialized.[138] The state’s population grew quickly during this period, with large levels of migration from outside the state.[138] As a part of the Sun Belt Texas experienced strong economic growth, particularly during the 1970s and early 1980s.Texas’s economy diversified, lessening its reliance on the petroleum industry. By 1990, Hispanics overtook blacks to become the largest minority group in the state.

During the late 20th century, the Republican Party replaced the Democratic Party as the dominant party in the state, as the latter became more politically liberal and as demographic changes favored the former.