The term "Hispanos" traditionally refers to people of Spanish descent living in the southwestern United States, particularly in New Mexico. They are descendants of the original Spanish settlers in the region.
The Hispanos of New Mexico are people of Spanish or Indo-Hispanic descent. The explorer Don Juan de Oñate from Mexico City to New Mexico with 500 Spanish settlers and soldiers around 1598. By the time of the Civil War in 1861, both the North and South claimed ownership of the area. And like with White treatment of Native Americans, Whites treated the Hispanos unfairly as second-class citizens.
I would guess that whenever they were "colonized" by the Spaniards. Afterall, the Spanish language starts with the Spaniards. And it's not like the Mexicans starting speaking spanish out of the blue one day.
The Spanish speaking people in what is now the American southwest were white colonists from Spain and later some mixed Spanish and native Mexican people (mestizos). It was a province of New Spain, what is now Mexico. Even today they speak a Spanish that is more like older version of Spanish from the 1600s and called themselves "Spanish". The first settlements were in 1598. Santa Fe dates from 1610.
People from Spanish-speaking countries are often referred to as "hispanohablantes" or "hablantes de español" in Spanish.
In Mexico the Spanish word for Spanish is Español.
Texans
they were called creoles
soccer is very important in spanish speaking countries. it is also called (futbol) in spanish speaking countries.
Colonizador (es, pl)
they were called creoles
Spanish-speaking citizens are often called Hispanics.